1122021000220 has 12 divisors (see below), whose sum is σ = 2356244100504. Its totient is φ = 448808400080.

The previous prime is 1122021000211. The next prime is 1122021000239. The reversal of 1122021000220 is 220001202211.

It is a happy number.

It is a super-2 number, since 2×1122021000220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122021000220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28050524986 + ... + 28050525025.

It is an arithmetic number, because the mean of its divisors is an integer number (196353675042).

Almost surely, 2^{1122021000220} is an apocalyptic number.

1122021000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122021000220 is an abundant number, since it is smaller than the sum of its proper divisors (1234223100284).

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

1122021000220 is a wasteful number, since it uses less digits than its factorization.

1122021000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56101050020 (or 56101050018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1122021000220 its reverse (220001202211), we get a palindrome (1342022202431).

The spelling of 1122021000220 in words is "one trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty", and thus it is an aban number.