210020021112112 has 40 divisors (see below), whose sum is σ = 424659319349760. Its totient is φ = 100431672559680.

The previous prime is 210020021112107. The next prime is 210020021112241. The reversal of 210020021112112 is 211211120020012.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33119814 + ... + 38948197.

It is an arithmetic number, because the mean of its divisors is an integer number (10616482983744).

Almost surely, 2^{210020021112112} is an apocalyptic number.

It is an amenable number.

210020021112112 is an abundant number, since it is smaller than the sum of its proper divisors (214639298237648).

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

210020021112112 is a wasteful number, since it uses less digits than its factorization.

210020021112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72075961 (or 72075955 counting only the distinct ones).

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

Adding to 210020021112112 its reverse (211211120020012), we get a palindrome (421231141132124).

The spelling of 210020021112112 in words is "two hundred ten trillion, twenty billion, twenty-one million, one hundred twelve thousand, one hundred twelve".