210022101200121 has 32 divisors (see below), whose sum is σ = 325615019950080. Its totient is φ = 117936171517824.

The previous prime is 210022101200113. The next prime is 210022101200147. The reversal of 210022101200121 is 121002101220012.

It is not a de Polignac number, because 210022101200121 - 2³ = 210022101200113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210022101200121.

It is not an unprimeable number, because it can be changed into a prime (210022101200161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344392825 + ... + 345002118.

It is an arithmetic number, because the mean of its divisors is an integer number (10175469373440).

Almost surely, 2^{210022101200121} is an apocalyptic number.

210022101200121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210022101200121 is a deficient number, since it is larger than the sum of its proper divisors (115592918749959).

210022101200121 is a wasteful number, since it uses less digits than its factorization.

210022101200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689395205.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210022101200121 its reverse (121002101220012), we get a palindrome (331024202420133).

The spelling of 210022101200121 in words is "two hundred ten trillion, twenty-two billion, one hundred one million, two hundred thousand, one hundred twenty-one".