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12220211201232 = 243349972760141
BaseRepresentation
bin1011000111010011110101…
…0110010000010011010000
31121021020111112022012011110
42301310331112100103100
53100203443031414412
641553515412213320
72400611140232316
oct261647526202320
947236445265143
1012220211201232
1139916207086a1
12145443800a240
136a8490093218
143036660420b6
15162d2092dd3c
hexb1d3d5904d0

12220211201232 has 40 divisors (see below), whose sum is σ = 31577901628000. Its totient is φ = 4072239515520.

The previous prime is 12220211201227. The next prime is 12220211201249. The reversal of 12220211201232 is 23210211202221.

It is a junction number, because it is equal to n+sod(n) for n = 12220211201199 and 12220211201208.

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, 36212119 + ... + 36548022.

It is an arithmetic number, because the mean of its divisors is an integer number (789447540700).

Almost surely, 212220211201232 is an apocalyptic number.

12220211201232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220211201232 is an abundant number, since it is smaller than the sum of its proper divisors (19357690426768).

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

12220211201232 is a wasteful number, since it uses less digits than its factorization.

12220211201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72763651 (or 72763645 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12220211201232 its reverse (23210211202221), we get a palindrome (35430422403453).

The spelling of 12220211201232 in words is "twelve trillion, two hundred twenty billion, two hundred eleven million, two hundred one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 3499 6998 10497 13996 20994 27992 41988 55984 83976 167952 72760141 145520282 218280423 291040564 436560846 582081128 873121692 1164162256 1746243384 3492486768 254587733359 509175466718 763763200077 1018350933436 1527526400154 2036701866872 3055052800308 4073403733744 6110105600616 12220211201232