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1212200220110 = 251129871343613
BaseRepresentation
bin10001101000111100110…
…000110111010111001110
311021212220022120111200112
4101220330300313113032
5124330041224020420
62324513241400022
7153402310601615
oct21507460672716
94255808514615
101212200220110
11428100471030
12176b23499012
138a405082a69
144295698487c
15217ead0a8c5
hex11a3cc375ce

1212200220110 has 64 divisors (see below), whose sum is σ = 2462739526080. Its totient is φ = 425541473280.

The previous prime is 1212200220109. The next prime is 1212200220167. The reversal of 1212200220110 is 110220022121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27772664 + ... + 27816276.

It is an arithmetic number, because the mean of its divisors is an integer number (38480305095).

Almost surely, 21212200220110 is an apocalyptic number.

1212200220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212200220110 is an abundant number, since it is smaller than the sum of its proper divisors (1250539305970).

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

1212200220110 is a wasteful number, since it uses less digits than its factorization.

1212200220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52373.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212200220110 its reverse (110220022121), we get a palindrome (1322420242231).

The spelling of 1212200220110 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 638 1595 3190 8713 17426 43565 43613 87130 87226 95843 191686 218065 252677 436130 479215 479743 505354 958430 959486 1263385 1264777 2398715 2526770 2529554 2779447 4797430 5558894 6323885 12647770 13897235 13912547 27794470 27825094 69562735 139125470 380000069 760000138 1900000345 3800000690 4180000759 8360001518 11020002001 20900003795 22040004002 41800007590 55100010005 110200020010 121220022011 242440044022 606100110055 1212200220110