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202212012020 = 22574313607807
BaseRepresentation
bin1011110001010011000…
…1100110111111110100
3201022221111120112112112
42330110301212333310
511303112233341040
6232521145110152
720416000512434
oct2742461467764
9638844515475
10202212012020
1178837455607
1233234488358
13160b7698125
149b03ba82c4
1553d7765365
hex2f14c66ff4

202212012020 has 24 divisors (see below), whose sum is σ = 425216784384. Its totient is φ = 80775936416.

The previous prime is 202212012019. The next prime is 202212012049. The reversal of 202212012020 is 20210212202.

It is a junction number, because it is equal to n+sod(n) for n = 202212011986 and 202212012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6789044 + ... + 6818763.

It is an arithmetic number, because the mean of its divisors is an integer number (17717366016).

Almost surely, 2202212012020 is an apocalyptic number.

202212012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202212012020 is an abundant number, since it is smaller than the sum of its proper divisors (223004772364).

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

202212012020 is a wasteful number, since it uses less digits than its factorization.

202212012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608559 (or 13608557 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202212012020 its reverse (20210212202), we get a palindrome (222422224222).

The spelling of 202212012020 in words is "two hundred two billion, two hundred twelve million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 743 1486 2972 3715 7430 14860 13607807 27215614 54431228 68039035 136078070 272156140 10110600601 20221201202 40442402404 50553003005 101106006010 202212012020