212022200010121 has 32 divisors (see below), whose sum is σ = 215810530467840. Its totient is φ = 208272447936000.

The previous prime is 212022200010107. The next prime is 212022200010157. The reversal of 212022200010121 is 121010002220212.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212022200010121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212022200010095 and 212022200010104.

It is not an unprimeable number, because it can be changed into a prime (212022200010161) 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, 28455532446 + ... + 28455539896.

It is an arithmetic number, because the mean of its divisors is an integer number (6744079077120).

Almost surely, 2^{212022200010121} is an apocalyptic number.

It is an amenable number.

212022200010121 is a deficient number, since it is larger than the sum of its proper divisors (3788330457719).

212022200010121 is a wasteful number, since it uses less digits than its factorization.

212022200010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11365.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212022200010121 its reverse (121010002220212), we get a palindrome (333032202230333).

The spelling of 212022200010121 in words is "two hundred twelve trillion, twenty-two billion, two hundred million, ten thousand, one hundred twenty-one".