122221002022020 has 72 divisors (see below), whose sum is σ = 404440406697600. Its totient is φ = 29629333823040.

The previous prime is 122221002021991. The next prime is 122221002022033. The reversal of 122221002022020 is 20220200122221.

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 = 122221002021984 and 122221002022002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30863887420 + ... + 30863891379.

It is an arithmetic number, because the mean of its divisors is an integer number (5617227870800).

Almost surely, 2^{122221002022020} is an apocalyptic number.

122221002022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221002022020 is an abundant number, since it is smaller than the sum of its proper divisors (282219404675580).

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

122221002022020 is a wasteful number, since it uses less digits than its factorization.

122221002022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61727778825 (or 61727778820 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122221002022020 its reverse (20220200122221), we get a palindrome (142441202144241).

The spelling of 122221002022020 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two million, twenty-two thousand, twenty".