210122112021112 has 32 divisors (see below), whose sum is σ = 417798944615520. Its totient is φ = 98728163875840.

The previous prime is 210122112021103. The next prime is 210122112021149. The reversal of 210122112021112 is 211120211221012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210122112021112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193896189 + ... + 1194072172.

It is an arithmetic number, because the mean of its divisors is an integer number (13056217019235).

Almost surely, 2^{210122112021112} is an apocalyptic number.

It is an amenable number.

210122112021112 is a deficient number, since it is larger than the sum of its proper divisors (207676832594408).

210122112021112 is a wasteful number, since it uses less digits than its factorization.

210122112021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387969031 (or 2387969027 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210122112021112 its reverse (211120211221012), we get a palindrome (421242323242124).

The spelling of 210122112021112 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred twelve million, twenty-one thousand, one hundred twelve".