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12220031000021 = 134563672059751
BaseRepresentation
bin1011000111010011001010…
…0110110101110111010101
31121021020000222020000120112
42301310302212311313111
53100203110414000041
641553445454012405
72400603521445335
oct261646246656725
947236028200515
1012220031000021
113991538a18879
1214543a77a7105
136a846194b8a0
1430364a1350c5
15162d0ebd5deb
hexb1d329b5dd5

12220031000021 has 8 divisors (see below), whose sum is σ = 13160068610304. Its totient is φ = 11279998422000.

The previous prime is 12220031000017. The next prime is 12220031000029. The reversal of 12220031000021 is 12000013002221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220031000021 - 22 = 12220031000017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220031000029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4902896 + ... + 6962646.

It is an arithmetic number, because the mean of its divisors is an integer number (1645008576288).

Almost surely, 212220031000021 is an apocalyptic number.

It is an amenable number.

12220031000021 is a deficient number, since it is larger than the sum of its proper divisors (940037610283).

12220031000021 is a wasteful number, since it uses less digits than its factorization.

12220031000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516131.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12220031000021 its reverse (12000013002221), we get a palindrome (24220044002242).

The spelling of 12220031000021 in words is "twelve trillion, two hundred twenty billion, thirty-one million, twenty-one", and thus it is an aban number.

Divisors: 1 13 456367 2059751 5932771 26776763 940002384617 12220031000021