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11012212020020 = 2251733182720237
BaseRepresentation
bin1010000000111111101011…
…1111000101001100110100
31102222202102222201120110012
42200033322333011030310
52420411002234120040
635230535041315352
72214414610506251
oct240177277051464
942882388646405
1011012212020020
113566286663342
12129a2a7635b58
1361b5a7490cc3
142a0dcb3c4428
151416bd85a865
hexa03fafc5334

11012212020020 has 24 divisors (see below), whose sum is σ = 23259319499304. Its totient is φ = 4379423044736.

The previous prime is 11012212020001. The next prime is 11012212020031. The reversal of 11012212020020 is 2002021221011.

It can be written as a sum of positive squares in 4 ways, for example, as 1502771967376 + 9509440052644 = 1225876^2 + 3083738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11012212019977 and 11012212020004.

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 7 ways as a sum of consecutive naturals, for example, 1591356659 + ... + 1591363578.

It is an arithmetic number, because the mean of its divisors is an integer number (969138312471).

Almost surely, 211012212020020 is an apocalyptic number.

11012212020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11012212020020 is an abundant number, since it is smaller than the sum of its proper divisors (12247107479284).

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

11012212020020 is a wasteful number, since it uses less digits than its factorization.

11012212020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182720419 (or 3182720417 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11012212020020 its reverse (2002021221011), we get a palindrome (13014233241031).

The spelling of 11012212020020 in words is "eleven trillion, twelve billion, two hundred twelve million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 3182720237 6365440474 12730880948 15913601185 31827202370 63654404740 550610601001 1101221202002 2202442404004 2753053005005 5506106010010 11012212020020