2101010221200 has 120 divisors (see below), whose sum is σ = 7342075764576. Its totient is φ = 509335808000.

The previous prime is 2101010221169. The next prime is 2101010221223. The reversal of 2101010221200 is 21220101012.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79570521 + ... + 79596920.

Almost surely, 2^{2101010221200} is an apocalyptic number.

2101010221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101010221200 is an abundant number, since it is smaller than the sum of its proper divisors (5241065543376).

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

2101010221200 is a wasteful number, since it uses less digits than its factorization.

2101010221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159167473 (or 159167462 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101010221200 its reverse (21220101012), we get a palindrome (2122230322212).

The spelling of 2101010221200 in words is "two trillion, one hundred one billion, ten million, two hundred twenty-one thousand, two hundred".