210010200122121 has 16 divisors (see below), whose sum is σ = 321783584723328. Its totient is φ = 119342813011200.

The previous prime is 210010200122113. The next prime is 210010200122171. The reversal of 210010200122121 is 121221002010012.

It is not a de Polignac number, because 210010200122121 - 2³ = 210010200122113 is a prime.

It is a super-2 number, since 2×210010200122121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210010200122121.

It is not an unprimeable number, because it can be changed into a prime (210010200122111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27625647360 + ... + 27625654961.

It is an arithmetic number, because the mean of its divisors is an integer number (20111474045208).

Almost surely, 2^{210010200122121} is an apocalyptic number.

210010200122121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210010200122121 is a deficient number, since it is larger than the sum of its proper divisors (111773384601207).

210010200122121 is a wasteful number, since it uses less digits than its factorization.

210010200122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55251302512.

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

Adding to 210010200122121 its reverse (121221002010012), we get a palindrome (331231202132133).

The spelling of 210010200122121 in words is "two hundred ten trillion, ten billion, two hundred million, one hundred twenty-two thousand, one hundred twenty-one".