122021210000020 has 24 divisors (see below), whose sum is σ = 262203716373984. Its totient is φ = 47673402976416.

The previous prime is 122021209999987. The next prime is 122021210000033. The reversal of 122021210000020 is 20000012120221.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 70942563094 + ... + 70942564813.

It is an arithmetic number, because the mean of its divisors is an integer number (10925154848916).

Almost surely, 2^{122021210000020} is an apocalyptic number.

122021210000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021210000020 is an abundant number, since it is smaller than the sum of its proper divisors (140182506373964).

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

122021210000020 is a wasteful number, since it uses less digits than its factorization.

122021210000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141885127959 (or 141885127957 counting only the distinct ones).

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

Adding to 122021210000020 its reverse (20000012120221), we get a palindrome (142021222120241).

The spelling of 122021210000020 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred ten million, twenty", and thus it is an aban number.