122001001000 has 32 divisors (see below), whose sum is σ = 285482344680. Its totient is φ = 48800400000.

The previous prime is 122001000967. The next prime is 122001001033. The reversal of 122001001000 is 100100221.

It is an interprime number because it is at equal distance from previous prime (122001000967) and next prime (122001001033).

It can be written as a sum of positive squares in 4 ways, for example, as 4534406244 + 117466594756 = 67338^2 + 342734^2 .

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, 60999501 + ... + 61001500.

Almost surely, 2^122001001000 is an apocalyptic number.

122001001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001001000 is an abundant number, since it is smaller than the sum of its proper divisors (163481343680).

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

122001001000 is a wasteful number, since it uses less digits than its factorization.

122001001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122001022 (or 122001008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 122001001000 its reverse (100100221), we get a palindrome (122101101221).

The spelling of 122001001000 in words is "one hundred twenty-two billion, one million, one thousand".