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12100110100220 = 225619977391769
BaseRepresentation
bin1011000000010100011011…
…0000111010011011111100
31120211202111110220010011002
42300011012300322123330
53041222011141201340
641422414104545432
72356130002560632
oct260050660723374
946752443803132
1012100110100220
11394569a77a91a
1214350ba482278
1369a05cc6b18c
142db9114dd352
1515eb41b57715
hexb0146c3a6fc

12100110100220 has 24 divisors (see below), whose sum is σ = 25451281690800. Its totient is φ = 4832224900992.

The previous prime is 12100110100219. The next prime is 12100110100261. The reversal of 12100110100220 is 2200101100121.

It is a congruent number.

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, 488683505 + ... + 488708264.

It is an arithmetic number, because the mean of its divisors is an integer number (1060470070450).

Almost surely, 212100110100220 is an apocalyptic number.

12100110100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100110100220 is an abundant number, since it is smaller than the sum of its proper divisors (13351171590580).

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

12100110100220 is a wasteful number, since it uses less digits than its factorization.

12100110100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977392397 (or 977392395 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12100110100220 its reverse (2200101100121), we get a palindrome (14300211200341).

Subtracting from 12100110100220 its reverse (2200101100121), we obtain a palindrome (9900009000099).

The spelling of 12100110100220 in words is "twelve trillion, one hundred billion, one hundred ten million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 619 1238 2476 3095 6190 12380 977391769 1954783538 3909567076 4886958845 9773917690 19547835380 605005505011 1210011010022 2420022020044 3025027525055 6050055050110 12100110100220