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212021031201 = 3767670322481
BaseRepresentation
bin1100010101110101110…
…0000011000100100001
3202021021002222100020020
43011131130003010201
511433204340444301
6241222350304053
721214036013130
oct3053534030441
9667232870206
10212021031201
1181a10387931
12351114b8029
1316cbb9385a5
14a394815917
1557ad99b436
hex315d703121

212021031201 has 32 divisors (see below), whose sum is σ = 327965257728. Its totient is φ = 119323480320.

The previous prime is 212021031199. The next prime is 212021031223. The reversal of 212021031201 is 102130120212.

It is not a de Polignac number, because 212021031201 - 21 = 212021031199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021031241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9419881 + ... + 9442361.

It is an arithmetic number, because the mean of its divisors is an integer number (10248914304).

Almost surely, 2212021031201 is an apocalyptic number.

212021031201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212021031201 is a deficient number, since it is larger than the sum of its proper divisors (115944226527).

212021031201 is a wasteful number, since it uses less digits than its factorization.

212021031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29261.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021031201 its reverse (102130120212), we get a palindrome (314151151413).

The spelling of 212021031201 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, two hundred one".

Divisors: 1 3 7 21 67 201 469 1407 6703 20109 22481 46921 67443 140763 157367 449101 472101 1347303 1506227 3143707 4518681 9431121 10543589 31630767 150690143 452070429 1054831001 3164493003 10096239581 30288718743 70673677067 212021031201