122000202120100 has 18 divisors (see below), whose sum is σ = 264740438600834. Its totient is φ = 48800080848000.

The previous prime is 122000202120079. The next prime is 122000202120103. The reversal of 122000202120100 is 1021202000221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3838997560896 + 118161204559204 = 1959336^2 + 10870198^2 .

It is not an unprimeable number, because it can be changed into a prime (122000202120103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610001010501 + ... + 610001010700.

Almost surely, 2^{122000202120100} is an apocalyptic number.

122000202120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122000202120100 is an abundant number, since it is smaller than the sum of its proper divisors (142740236480734).

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

122000202120100 is a wasteful number, since it uses less digits than its factorization.

122000202120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220002021215 (or 1220002021208 counting only the distinct ones).

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

Adding to 122000202120100 its reverse (1021202000221), we get a palindrome (123021404120321).

The spelling of 122000202120100 in words is "one hundred twenty-two trillion, two hundred two million, one hundred twenty thousand, one hundred".