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12010211112 = 2331696329501
BaseRepresentation
bin10110010111101110…
…10100011100101000
31011000000022221100210
423023313110130220
5144044103223422
65303432301120
7603424052514
oct131367243450
934000287323
1012010211112
1151034a6409
1223b22417a0
1311952cb4c3
1481d119144
154a45db10c
hex2cbdd4728

12010211112 has 32 divisors (see below), whose sum is σ = 30028315680. Its totient is φ = 4003032000.

The previous prime is 12010211099. The next prime is 12010211117. The reversal of 12010211112 is 21111201021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12010211117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392362 + ... + 421862.

It is an arithmetic number, because the mean of its divisors is an integer number (938384865).

Almost surely, 212010211112 is an apocalyptic number.

12010211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010211112 is an abundant number, since it is smaller than the sum of its proper divisors (18018104568).

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

12010211112 is a wasteful number, since it uses less digits than its factorization.

12010211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46473 (or 46469 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12010211112 its reverse (21111201021), we get a palindrome (33121412133).

The spelling of 12010211112 in words is "twelve billion, ten million, two hundred eleven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 16963 29501 33926 50889 59002 67852 88503 101778 118004 135704 177006 203556 236008 354012 407112 708024 500425463 1000850926 1501276389 2001701852 3002552778 4003403704 6005105556 12010211112