20121100131122 has 16 divisors (see below), whose sum is σ = 30224769287040. Its totient is φ = 10046178094128.

The previous prime is 20121100131107. The next prime is 20121100131133. The reversal of 20121100131122 is 22113100112102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20121100131122.

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, 39937448 + ... + 40438124.

It is an arithmetic number, because the mean of its divisors is an integer number (1889048080440).

Almost surely, 2^{20121100131122} is an apocalyptic number.

20121100131122 is a deficient number, since it is larger than the sum of its proper divisors (10103669155918).

20121100131122 is a wasteful number, since it uses less digits than its factorization.

20121100131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529345.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20121100131122 its reverse (22113100112102), we get a palindrome (42234200243224).

The spelling of 20121100131122 in words is "twenty trillion, one hundred twenty-one billion, one hundred million, one hundred thirty-one thousand, one hundred twenty-two".