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112222222212 = 22319492202729
BaseRepresentation
bin110100010000011110…
…1110011011110000100
3101201122221220120011110
41220200331303132010
53314312342102322
6123315411405020
711051654102262
oct1504075633604
9351587816143
10112222222212
11436585785a1
12198babb3770
13a775a0c2a9
1456083a7432
152dbc253c0c
hex1a20f73784

112222222212 has 24 divisors (see below), whose sum is σ = 275633528800. Its totient is φ = 35438596416.

The previous prime is 112222222157. The next prime is 112222222249. The reversal of 112222222212 is 212222222211.

It is a nude number because it is divisible by every one of its digits.

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, 246101137 + ... + 246101592.

Almost surely, 2112222222212 is an apocalyptic number.

112222222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112222222212 is an abundant number, since it is smaller than the sum of its proper divisors (163411306588).

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

112222222212 is a wasteful number, since it uses less digits than its factorization.

112222222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492202755 (or 492202753 counting only the distinct ones).

The product of its digits is 512, while the sum is 21.

Adding to 112222222212 its reverse (212222222211), we get a palindrome (324444444423).

Subtracting 112222222212 from its reverse (212222222211), we obtain a palindrome (99999999999).

The spelling of 112222222212 in words is "one hundred twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 492202729 984405458 1476608187 1968810916 2953216374 5906432748 9351851851 18703703702 28055555553 37407407404 56111111106 112222222212