122002220020 has 24 divisors (see below), whose sum is σ = 256211238024. Its totient is φ = 48799635456.

The previous prime is 122002219993. The next prime is 122002220047. The reversal of 122002220020 is 20022200221.

It is an interprime number because it is at equal distance from previous prime (122002219993) and next prime (122002220047).

It can be written as a sum of positive squares in 4 ways, for example, as 21561398244 + 100440821776 = 146838^2 + 316924^2 .

It is a congruent number.

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, 1417252 + ... + 1500868.

It is an arithmetic number, because the mean of its divisors is an integer number (10675468251).

Almost surely, 2^122002220020 is an apocalyptic number.

122002220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002220020 is an abundant number, since it is smaller than the sum of its proper divisors (134209018004).

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

122002220020 is a wasteful number, since it uses less digits than its factorization.

122002220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156579 (or 156577 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 122002220020 its reverse (20022200221), we get a palindrome (142024420241).

The spelling of 122002220020 in words is "one hundred twenty-two billion, two million, two hundred twenty thousand, twenty".