12102122021200 has 60 divisors (see below), whose sum is σ = 29077891226208. Its totient is φ = 4840425404800.

The previous prime is 12102122021183. The next prime is 12102122021251. The reversal of 12102122021200 is 212022120121.

It is a happy number.

It is a super-2 number, since 2×12102122021200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 3275805 + ... + 5910595.

Almost surely, 2^{12102122021200} is an apocalyptic number.

12102122021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102122021200 is an abundant number, since it is smaller than the sum of its proper divisors (16975769205008).

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

12102122021200 is a wasteful number, since it uses less digits than its factorization.

12102122021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646292 (or 2646281 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12102122021200 its reverse (212022120121), we get a palindrome (12314144141321).

The spelling of 12102122021200 in words is "twelve trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, two hundred".