1220220031122 has 16 divisors (see below), whose sum is σ = 2711600069280. Its totient is φ = 406740010356.

The previous prime is 1220220031117. The next prime is 1220220031139. The reversal of 1220220031122 is 2211300220221.

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 = 1220220031095 and 1220220031104.

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, 11298333568 + ... + 11298333675.

It is an arithmetic number, because the mean of its divisors is an integer number (169475004330).

Almost surely, 2^{1220220031122} is an apocalyptic number.

1220220031122 is an abundant number, since it is smaller than the sum of its proper divisors (1491380038158).

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

1220220031122 is a wasteful number, since it uses less digits than its factorization.

1220220031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22596667254 (or 22596667248 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1220220031122 its reverse (2211300220221), we get a palindrome (3431520251343).

The spelling of 1220220031122 in words is "one trillion, two hundred twenty billion, two hundred twenty million, thirty-one thousand, one hundred twenty-two".