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102212214124 = 22179142754489
BaseRepresentation
bin101111100110001010…
…0101001110101101100
3100202211100022110112011
41133030110221311230
53133312311322444
6114542230251004
710245625325236
oct1371424516554
9322740273464
10102212214124
113a391148339
12179867b6a64
13983bc29697
144d38b9b256
1529d356a734
hex17cc529d6c

102212214124 has 12 divisors (see below), whose sum is σ = 179870657400. Its totient is φ = 50820597728.

The previous prime is 102212214121. The next prime is 102212214133. The reversal of 102212214124 is 421412212201.

It is a super-2 number, since 2×1022122141242 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102212214095 and 102212214104.

It is not an unprimeable number, because it can be changed into a prime (102212214121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71376529 + ... + 71377960.

It is an arithmetic number, because the mean of its divisors is an integer number (14989221450).

Almost surely, 2102212214124 is an apocalyptic number.

It is an amenable number.

102212214124 is a deficient number, since it is larger than the sum of its proper divisors (77658443276).

102212214124 is a wasteful number, since it uses less digits than its factorization.

102212214124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142754672 (or 142754670 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102212214124 its reverse (421412212201), we get a palindrome (523624426325).

The spelling of 102212214124 in words is "one hundred two billion, two hundred twelve million, two hundred fourteen thousand, one hundred twenty-four".

Divisors: 1 2 4 179 358 716 142754489 285508978 571017956 25553053531 51106107062 102212214124