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1200222013031 = 1889635374279
BaseRepresentation
bin10001011101110010110…
…011101000011001100111
311020201222112110112121022
4101131302303220121213
5124131023313404111
62315212511041355
7152466422532236
oct21356263503147
94221875415538
101200222013031
11423014044838
1217473bb1025b
13892465ab772
144213bbdab1d
15213494422db
hex11772ce8667

1200222013031 has 4 divisors (see below), whose sum is σ = 1200857389200. Its totient is φ = 1199586636864.

The previous prime is 1200222013007. The next prime is 1200222013049. The reversal of 1200222013031 is 1303102220021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200222013031 - 214 = 1200221996647 is a prime.

It is a super-2 number, since 2×12002220130312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200222013091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317685251 + ... + 317689028.

It is an arithmetic number, because the mean of its divisors is an integer number (300214347300).

Almost surely, 21200222013031 is an apocalyptic number.

1200222013031 is a deficient number, since it is larger than the sum of its proper divisors (635376169).

1200222013031 is an equidigital number, since it uses as much as digits as its factorization.

1200222013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635376168.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1200222013031 its reverse (1303102220021), we get a palindrome (2503324233052).

The spelling of 1200222013031 in words is "one trillion, two hundred billion, two hundred twenty-two million, thirteen thousand, thirty-one".

Divisors: 1 1889 635374279 1200222013031