122020002001000 has 32 divisors (see below), whose sum is σ = 285526804684680. Its totient is φ = 48808000800000.

The previous prime is 122020002000979. The next prime is 122020002001049. The reversal of 122020002001000 is 100200020221.

It can be written as a sum of positive squares in 4 ways, for example, as 40771519726564 + 81248482274436 = 6385258^2 + 9013794^2 .

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 7 ways as a sum of consecutive naturals, for example, 61010000001 + ... + 61010002000.

Almost surely, 2^{122020002001000} is an apocalyptic number.

122020002001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020002001000 is an abundant number, since it is smaller than the sum of its proper divisors (163506802683680).

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

122020002001000 is a wasteful number, since it uses less digits than its factorization.

122020002001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122020002022 (or 122020002008 counting only the distinct ones).

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

Adding to 122020002001000 its reverse (100200020221), we get a palindrome (122120202021221).

The spelling of 122020002001000 in words is "one hundred twenty-two trillion, twenty billion, two million, one thousand".