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111010120212 = 22352318119767
BaseRepresentation
bin110011101100010111…
…0000000001000010100
3101121112111010101210210
41213120232000020110
53304322042321322
6122555232045420
711006635311225
oct1473056001024
9347474111723
10111010120212
1143096356402
1219621093870
13a61186b584
14553140724c
152d4ab2770c
hex19d8b80214

111010120212 has 48 divisors (see below), whose sum is σ = 259688765952. Its totient is φ = 36908448480.

The previous prime is 111010120211. The next prime is 111010120217. The reversal of 111010120212 is 212021010111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010120211) 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, 11360953 + ... + 11370719.

It is an arithmetic number, because the mean of its divisors is an integer number (5410182624).

Almost surely, 2111010120212 is an apocalyptic number.

111010120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010120212 is an abundant number, since it is smaller than the sum of its proper divisors (148678645740).

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

111010120212 is a wasteful number, since it uses less digits than its factorization.

111010120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12108 (or 12106 counting only the distinct ones).

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

Adding to 111010120212 its reverse (212021010111), we get a palindrome (323031130323).

The spelling of 111010120212 in words is "one hundred eleven billion, ten million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 523 1046 1569 1811 2092 3138 3622 5433 6276 7244 9767 10866 19534 21732 29301 39068 58602 117204 947153 1894306 2841459 3788612 5108141 5682918 10216282 11365836 15324423 17688037 20432564 30648846 35376074 53064111 61297692 70752148 106128222 212256444 9250843351 18501686702 27752530053 37003373404 55505060106 111010120212