101220120120200 has 48 divisors (see below), whose sum is σ = 237419405697780. Its totient is φ = 40129746728960.

The previous prime is 101220120120199. The next prime is 101220120120331. The reversal of 101220120120200 is 2021021022101.

It can be written as a sum of positive squares in 6 ways, for example, as 40602715344676 + 60617404775524 = 6372026^2 + 7785718^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2239360589 + ... + 2239405788.

Almost surely, 2^{101220120120200} is an apocalyptic number.

101220120120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220120120200 is an abundant number, since it is smaller than the sum of its proper divisors (136199285577580).

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

101220120120200 is a wasteful number, since it uses less digits than its factorization.

101220120120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478766506 (or 4478766497 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101220120120200 its reverse (2021021022101), we get a palindrome (103241141142301).

The spelling of 101220120120200 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty thousand, two hundred".