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1200122223131 = 133123111288607
BaseRepresentation
bin10001011101101100110…
…110111101101000011011
311020201201120200200121002
4101131230312331220123
5124130322242120011
62315154544135215
7152464101403466
oct21355466755033
94221646620532
101200122223131
11422a72787147
1217471260750b
138922ba0c7a0
144212c8622dd
15213407cec3b
hex1176cdbda1b

1200122223131 has 16 divisors (see below), whose sum is σ = 1334709239808. Its totient is φ = 1071604749600.

The previous prime is 1200122223109. The next prime is 1200122223137. The reversal of 1200122223131 is 1313222210021.

It is a cyclic number.

It is not a de Polignac number, because 1200122223131 - 218 = 1200121960987 is a prime.

It is a super-2 number, since 2×12001222231312 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200122223137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287030 + ... + 1575636.

It is an arithmetic number, because the mean of its divisors is an integer number (83419327488).

Almost surely, 21200122223131 is an apocalyptic number.

1200122223131 is a deficient number, since it is larger than the sum of its proper divisors (134587016677).

1200122223131 is a wasteful number, since it uses less digits than its factorization.

1200122223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290962.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1200122223131 its reverse (1313222210021), we get a palindrome (2513344433152).

The spelling of 1200122223131 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 13 31 403 2311 30043 71641 931333 1288607 16751891 39946817 519308621 2977970777 38713620101 92317094087 1200122223131