1200021010212 has 24 divisors (see below), whose sum is σ = 2875726025536. Its totient is φ = 389196003168.

The previous prime is 1200021010211. The next prime is 1200021010217. The reversal of 1200021010212 is 2120101200021.

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

It is not an unprimeable number, because it can be changed into a prime (1200021010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351374568 + ... + 1351375455.

Almost surely, 2^{1200021010212} is an apocalyptic number.

1200021010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200021010212 is an abundant number, since it is smaller than the sum of its proper divisors (1675705015324).

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

1200021010212 is a wasteful number, since it uses less digits than its factorization.

1200021010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702750067 (or 2702750065 counting only the distinct ones).

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

Adding to 1200021010212 its reverse (2120101200021), we get a palindrome (3320122210233).

The spelling of 1200021010212 in words is "one trillion, two hundred billion, twenty-one million, ten thousand, two hundred twelve".