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102022222220 = 2255101111111
BaseRepresentation
bin101111100000011111…
…1111001000110001100
3100202100002210212121222
41133000333321012030
53132420142102340
6114511322142512
710241130403052
oct1370077710614
9322302725558
10102022222220
113a2a3980636
1217933051a38
13980b767839
144d1b8621d2
1529c1a3b8b5
hex17c0ff918c

102022222220 has 12 divisors (see below), whose sum is σ = 214246666704. Its totient is φ = 40808888880.

The previous prime is 102022222207. The next prime is 102022222261. The reversal of 102022222220 is 22222220201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550555536 + ... + 2550555575.

It is an arithmetic number, because the mean of its divisors is an integer number (17853888892).

Almost surely, 2102022222220 is an apocalyptic number.

102022222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102022222220 is an abundant number, since it is smaller than the sum of its proper divisors (112224444484).

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

102022222220 is a wasteful number, since it uses less digits than its factorization.

102022222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101111120 (or 5101111118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 102022222220 its reverse (22222220201), we get a palindrome (124244442421).

The spelling of 102022222220 in words is "one hundred two billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5101111111 10202222222 20404444444 25505555555 51011111110 102022222220