122002021000 has 64 divisors (see below), whose sum is σ = 300510288000. Its totient is φ = 46232337600.

The previous prime is 122002020997. The next prime is 122002021013. The reversal of 122002021000 is 120200221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3191580 + ... + 3229579.

It is an arithmetic number, because the mean of its divisors is an integer number (4695473250).

Almost surely, 2^122002021000 is an apocalyptic number.

122002021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002021000 is an abundant number, since it is smaller than the sum of its proper divisors (178508267000).

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

122002021000 is a wasteful number, since it uses less digits than its factorization.

122002021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421199 (or 6421185 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122002021000 its reverse (120200221), we get a palindrome (122122221221).

The spelling of 122002021000 in words is "one hundred twenty-two billion, two million, twenty-one thousand".