212122020110121 has 48 divisors (see below), whose sum is σ = 348802827115392. Its totient is φ = 122963218329600.

The previous prime is 212122020110101. The next prime is 212122020110141. The reversal of 212122020110121 is 121011020221212.

212122020110121 is a `hidden beast` number, since 2 + 121 + 220 + 201 + 1 + 0 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (212122020110101) and next prime (212122020110141).

It is not a de Polignac number, because 212122020110121 - 2⁵ = 212122020110089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212122020110094 and 212122020110103.

It is not an unprimeable number, because it can be changed into a prime (212122020110101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44055211 + ... + 48632351.

It is an arithmetic number, because the mean of its divisors is an integer number (7266725564904).

Almost surely, 2^{212122020110121} is an apocalyptic number.

It is an amenable number.

212122020110121 is a deficient number, since it is larger than the sum of its proper divisors (136680807005271).

212122020110121 is a wasteful number, since it uses less digits than its factorization.

212122020110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597534 (or 4597531 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212122020110121 its reverse (121011020221212), we get a palindrome (333133040331333).

The spelling of 212122020110121 in words is "two hundred twelve trillion, one hundred twenty-two billion, twenty million, one hundred ten thousand, one hundred twenty-one".