1121011020220 has 96 divisors (see below), whose sum is σ = 2897617637376. Its totient is φ = 354752697600.

The previous prime is 1121011020211. The next prime is 1121011020263. The reversal of 1121011020220 is 220201101211.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1121011020220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39863965 + ... + 39892075.

It is an arithmetic number, because the mean of its divisors is an integer number (30183517056).

Almost surely, 2^{1121011020220} is an apocalyptic number.

1121011020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121011020220 is an abundant number, since it is smaller than the sum of its proper divisors (1776606617156).

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

1121011020220 is a wasteful number, since it uses less digits than its factorization.

1121011020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50051 (or 50049 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121011020220 its reverse (220201101211), we get a palindrome (1341212121431).

The spelling of 1121011020220 in words is "one trillion, one hundred twenty-one billion, eleven million, twenty thousand, two hundred twenty".