210122112112 has 40 divisors (see below), whose sum is σ = 449111902320. Its totient is φ = 94436897280.

The previous prime is 210122112071. The next prime is 210122112169. The reversal of 210122112112 is 211211221012.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6691503 + ... + 6722830.

It is an arithmetic number, because the mean of its divisors is an integer number (11227797558).

Almost surely, 2^210122112112 is an apocalyptic number.

210122112112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210122112112 is an abundant number, since it is smaller than the sum of its proper divisors (238989790208).

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

210122112112 is a wasteful number, since it uses less digits than its factorization.

210122112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13414441 (or 13414435 counting only the distinct ones).

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

Adding to 210122112112 its reverse (211211221012), we get a palindrome (421333333124).

It can be divided in two parts, 21012 and 2112112, that multiplied together give a palindrome (44379697344).

The spelling of 210122112112 in words is "two hundred ten billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".