10001210021200 has 60 divisors (see below), whose sum is σ = 25292533783360. Its totient is φ = 3789932215680.

The previous prime is 10001210021177. The next prime is 10001210021237. The reversal of 10001210021200 is 212001210001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 657966744 + ... + 657981943.

Almost surely, 2^{10001210021200} is an apocalyptic number.

10001210021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001210021200 is an abundant number, since it is smaller than the sum of its proper divisors (15291323762160).

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

10001210021200 is a wasteful number, since it uses less digits than its factorization.

10001210021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315948724 (or 1315948713 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10001210021200 its reverse (212001210001), we get a palindrome (10213211231201).

The spelling of 10001210021200 in words is "ten trillion, one billion, two hundred ten million, twenty-one thousand, two hundred".