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12210013232020 = 225610500661601
BaseRepresentation
bin1011000110101101110110…
…0000000101101110010100
31121020021011211000200100001
42301223131200011232110
53100022101341411040
641545111434301044
72400100340021542
oct261533540055624
947207154020301
1012210013232020
11398826817846a
121452470887784
136a752637cc06
14302d798a8d92
151629254b859a
hexb1add805b94

12210013232020 has 12 divisors (see below), whose sum is σ = 25641027787284. Its totient is φ = 4884005292800.

The previous prime is 12210013231993. The next prime is 12210013232057. The reversal of 12210013232020 is 2023231001221.

It can be written as a sum of positive squares in 2 ways, for example, as 1894790792196 + 10315222439824 = 1376514^2 + 3211732^2 .

It is a super-2 number, since 2×122100132320202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 305250330781 + ... + 305250330820.

It is an arithmetic number, because the mean of its divisors is an integer number (2136752315607).

Almost surely, 212210013232020 is an apocalyptic number.

12210013232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210013232020 is an abundant number, since it is smaller than the sum of its proper divisors (13431014555264).

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

12210013232020 is a wasteful number, since it uses less digits than its factorization.

12210013232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610500661610 (or 610500661608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12210013232020 its reverse (2023231001221), we get a palindrome (14233244233241).

The spelling of 12210013232020 in words is "twelve trillion, two hundred ten billion, thirteen million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 610500661601 1221001323202 2442002646404 3052503308005 6105006616010 12210013232020