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12202202021020 = 22511153641361001
BaseRepresentation
bin1011000110010000101111…
…1010101011110010011100
31121012112000102212001020221
42301210023322223302130
53044410102204133040
641541340401051124
72366402640563614
oct261441372536234
947175012761227
1012202202021020
113984a19a25a90
121450a50926aa4
136a687cc9a27b
14302838305a44
1516261986074a
hexb190beabc9c

12202202021020 has 48 divisors (see below), whose sum is σ = 27954394919136. Its totient is φ = 4437123200000.

The previous prime is 12202202021011. The next prime is 12202202021033. The reversal of 12202202021020 is 2012020220221.

It is a junction number, because it is equal to n+sod(n) for n = 12202202020985 and 12202202021003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33620520 + ... + 33981520.

It is an arithmetic number, because the mean of its divisors is an integer number (582383227482).

Almost surely, 212202202021020 is an apocalyptic number.

12202202021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202202021020 is an abundant number, since it is smaller than the sum of its proper divisors (15752192898116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12202202021020 is a wasteful number, since it uses less digits than its factorization.

12202202021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514662 (or 514660 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12202202021020 its reverse (2012020220221), we get a palindrome (14214222241241).

The spelling of 12202202021020 in words is "twelve trillion, two hundred two billion, two hundred two million, twenty-one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 153641 307282 361001 614564 722002 768205 1444004 1536410 1690051 1805005 3072820 3380102 3610010 3971011 6760204 7220020 7942022 8450255 15884044 16900510 19855055 33801020 39710110 79420220 55464554641 110929109282 221858218564 277322773205 554645546410 610110101051 1109291092820 1220220202102 2440440404204 3050550505255 6101101010510 12202202021020