210122121101122 has 16 divisors (see below), whose sum is σ = 320343876706752. Its totient is φ = 103347509377840.

The previous prime is 210122121101111. The next prime is 210122121101129. The reversal of 210122121101122 is 221101121221012.

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 210122121101122.

It is not an unprimeable number, because it can be changed into a prime (210122121101129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670064913 + ... + 1670190724.

It is an arithmetic number, because the mean of its divisors is an integer number (20021492294172).

Almost surely, 2^{210122121101122} is an apocalyptic number.

210122121101122 is a deficient number, since it is larger than the sum of its proper divisors (110221755605630).

210122121101122 is a wasteful number, since it uses less digits than its factorization.

210122121101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340256153.

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

Adding to 210122121101122 its reverse (221101121221012), we get a palindrome (431223242322134).

The spelling of 210122121101122 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty-two".