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2122112031 = 31360798951
BaseRepresentation
bin111111001111100…
…1101110000011111
312110220010110102220
41332133031300133
513321230041111
6550324120423
7103405440354
oct17637156037
95426113386
102122112031
119999711a6
124b2836113
1327a8606c0
14161ba462b
15c6483e06
hex7e7cdc1f

2122112031 has 16 divisors (see below), whose sum is σ = 3047976960. Its totient is φ = 1305554400.

The previous prime is 2122112011. The next prime is 2122112051. The reversal of 2122112031 is 1302112212.

It is an interprime number because it is at equal distance from previous prime (2122112011) and next prime (2122112051).

It is not a de Polignac number, because 2122112031 - 26 = 2122111967 is a prime.

It is a super-2 number, since 2×21221120312 = 9006718944229889922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122112031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122112011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232606 + ... + 241556.

It is an arithmetic number, because the mean of its divisors is an integer number (190498560).

Almost surely, 22122112031 is an apocalyptic number.

2122112031 is a deficient number, since it is larger than the sum of its proper divisors (925864929).

2122112031 is a wasteful number, since it uses less digits than its factorization.

2122112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15046.

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

The square root of 2122112031 is about 46066.3872145407. The cubic root of 2122112031 is about 1285.0581170503.

Adding to 2122112031 its reverse (1302112212), we get a palindrome (3424224243).

The spelling of 2122112031 in words is "two billion, one hundred twenty-two million, one hundred twelve thousand, thirty-one".

Divisors: 1 3 13 39 6079 8951 18237 26853 79027 116363 237081 349089 54413129 163239387 707370677 2122112031