122021211120020 has 24 divisors (see below), whose sum is σ = 256326228068904. Its totient is φ = 48792925454336.

The previous prime is 122021211120001. The next prime is 122021211120059. The reversal of 122021211120020 is 20021112120221.

It can be written as a sum of positive squares in 4 ways, for example, as 33175618589584 + 88845592530436 = 5759828^2 + 9425794^2 .

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, 972372797 + ... + 972498276.

It is an arithmetic number, because the mean of its divisors is an integer number (10680259502871).

Almost surely, 2^{122021211120020} is an apocalyptic number.

122021211120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021211120020 is an abundant number, since it is smaller than the sum of its proper divisors (134305016948884).

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

122021211120020 is a wasteful number, since it uses less digits than its factorization.

122021211120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944874219 (or 1944874217 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021211120020 its reverse (20021112120221), we get a palindrome (142042323240241).

The spelling of 122021211120020 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred eleven million, one hundred twenty thousand, twenty".