212022212020121 has 16 divisors (see below), whose sum is σ = 230498910157824. Its totient is φ = 194244391428864.

The previous prime is 212022212020093. The next prime is 212022212020139. The reversal of 212022212020121 is 121020212220212.

It is a cyclic number.

It is not a de Polignac number, because 212022212020121 - 2³⁸ = 211747334113177 is a prime.

It is a super-3 number, since 3×212022212020121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212022212020093 and 212022212020102.

It is not an unprimeable number, because it can be changed into a prime (212022212020181) 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, 494741561 + ... + 495169926.

It is an arithmetic number, because the mean of its divisors is an integer number (14406181884864).

Almost surely, 2^{212022212020121} is an apocalyptic number.

It is an amenable number.

212022212020121 is a deficient number, since it is larger than the sum of its proper divisors (18476698137703).

212022212020121 is a wasteful number, since it uses less digits than its factorization.

212022212020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989911840.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212022212020121 its reverse (121020212220212), we get a palindrome (333042424240333).

The spelling of 212022212020121 in words is "two hundred twelve trillion, twenty-two billion, two hundred twelve million, twenty thousand, one hundred twenty-one".