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2112202012 = 221578533943
BaseRepresentation
bin111110111100101…
…1010010100011100
312110012110222110011
41331321122110130
513311210431022
6545331453004
7103225264234
oct17571322434
95405428404
102112202012
119943126a8
124ab457164
132787a0a9b
14160744cc4
15c5677977
hex7de5a51c

2112202012 has 24 divisors (see below), whose sum is σ = 3725202656. Its totient is φ = 1047878208.

The previous prime is 2112202007. The next prime is 2112202031. The reversal of 2112202012 is 2102022112.

It is a happy number.

It is a super-2 number, since 2×21122020122 = 8922794678993696288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112201983 and 2112202001.

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, 533713 + ... + 537655.

Almost surely, 22112202012 is an apocalyptic number.

It is an amenable number.

2112202012 is a deficient number, since it is larger than the sum of its proper divisors (1613000644).

2112202012 is a wasteful number, since it uses less digits than its factorization.

2112202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2112202012 is about 45958.6989807153. The cubic root of 2112202012 is about 1283.0546372867.

Adding to 2112202012 its reverse (2102022112), we get a palindrome (4214224124).

The spelling of 2112202012 in words is "two billion, one hundred twelve million, two hundred two thousand, twelve".

Divisors: 1 2 4 157 314 628 853 1706 3412 3943 7886 15772 133921 267842 535684 619051 1238102 2476204 3363379 6726758 13453516 528050503 1056101006 2112202012