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102212002220 = 2257576751123
BaseRepresentation
bin101111100110001001…
…1110110000110101100
3100202211022220200211212
41133030103312012230
53133312233032340
6114542221533552
710245623453366
oct1371423660654
9322738820755
10102212002220
113a391013109
12179867142b8
13983bb840b3
144d38b43d36
1529d3527a65
hex17cc4f61ac

102212002220 has 24 divisors (see below), whose sum is σ = 214928783664. Its totient is φ = 40830785856.

The previous prime is 102212002169. The next prime is 102212002259. The reversal of 102212002220 is 22200212201.

It is a junction number, because it is equal to n+sod(n) for n = 102212002195 and 102212002204.

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, 3360422 + ... + 3390701.

It is an arithmetic number, because the mean of its divisors is an integer number (8955365986).

Almost surely, 2102212002220 is an apocalyptic number.

102212002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212002220 is an abundant number, since it is smaller than the sum of its proper divisors (112716781444).

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

102212002220 is a wasteful number, since it uses less digits than its factorization.

102212002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751889 (or 6751887 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102212002220 its reverse (22200212201), we get a palindrome (124412214421).

The spelling of 102212002220 in words is "one hundred two billion, two hundred twelve million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 757 1514 3028 3785 7570 15140 6751123 13502246 27004492 33755615 67511230 135022460 5110600111 10221200222 20442400444 25553000555 51106001110 102212002220