1200122211231 has 12 divisors (see below), whose sum is σ = 1750673325960. Its totient is φ = 792159874800.

The previous prime is 1200122211221. The next prime is 1200122211241. The reversal of 1200122211231 is 1321122210021.

1200122211231 is a `hidden beast` number, since 1 + 200 + 1 + 22 + 211 + 231 = 666.

It is an interprime number because it is at equal distance from previous prime (1200122211221) and next prime (1200122211241).

It is not a de Polignac number, because 1200122211231 - 2¹⁹ = 1200121686943 is a prime.

It is a super-2 number, since 2×1200122211231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200122211221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660132321 + ... + 660134138.

It is an arithmetic number, because the mean of its divisors is an integer number (145889443830).

Almost surely, 2^{1200122211231} is an apocalyptic number.

1200122211231 is a deficient number, since it is larger than the sum of its proper divisors (550551114729).

1200122211231 is a wasteful number, since it uses less digits than its factorization.

1200122211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320266566 (or 1320266563 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1200122211231 its reverse (1321122210021), we get a palindrome (2521244421252).

The spelling of 1200122211231 in words is "one trillion, two hundred billion, one hundred twenty-two million, two hundred eleven thousand, two hundred thirty-one".