210021121200112 has 20 divisors (see below), whose sum is σ = 407379908580856. Its totient is φ = 104890822211520.

The previous prime is 210021121200101. The next prime is 210021121200131. The reversal of 210021121200112 is 211002121120012.

It is a super-2 number, since 2×210021121200112² (a number of 29 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 3 ways as a sum of consecutive naturals, for example, 7483634814 + ... + 7483662877.

Almost surely, 2^{210021121200112} is an apocalyptic number.

It is an amenable number.

210021121200112 is a deficient number, since it is larger than the sum of its proper divisors (197358787380744).

210021121200112 is a wasteful number, since it uses less digits than its factorization.

210021121200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967298576 (or 14967298570 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210021121200112 its reverse (211002121120012), we get a palindrome (421023242320124).

The spelling of 210021121200112 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-one million, two hundred thousand, one hundred twelve".