1031220130122 has 72 divisors (see below), whose sum is σ = 2799026098596. Its totient is φ = 271970141184.

The previous prime is 1031220130121. The next prime is 1031220130181. The reversal of 1031220130122 is 2210310221301.

1031220130122 is a `hidden beast` number, since 1 + 0 + 312 + 201 + 30 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1030551855921 + 668274201 = 1015161^2 + 25851^2 .

It is a super-2 number, since 2×1031220130122² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1031220130095 and 1031220130104.

It is not an unprimeable number, because it can be changed into a prime (1031220130121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 44957143 + ... + 44980074.

Almost surely, 2^{1031220130122} is an apocalyptic number.

1031220130122 is an abundant number, since it is smaller than the sum of its proper divisors (1767805968474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031220130122 is a wasteful number, since it uses less digits than its factorization.

1031220130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89937252 (or 89937242 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1031220130122 its reverse (2210310221301), we get a palindrome (3241530351423).

The spelling of 1031220130122 in words is "one trillion, thirty-one billion, two hundred twenty million, one hundred thirty thousand, one hundred twenty-two".