212022202022121 has 16 divisors (see below), whose sum is σ = 283591551769344. Its totient is φ = 140900504473344.

The previous prime is 212022202022119. The next prime is 212022202022201. The reversal of 212022202022121 is 121220202220212.

It is not a de Polignac number, because 212022202022121 - 2¹ = 212022202022119 is a prime.

It is a super-2 number, since 2×212022202022121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212022202022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78231105 + ... + 80895921.

It is an arithmetic number, because the mean of its divisors is an integer number (17724471985584).

Almost surely, 2^{212022202022121} is an apocalyptic number.

It is an amenable number.

212022202022121 is a deficient number, since it is larger than the sum of its proper divisors (71569349747223).

212022202022121 is a wasteful number, since it uses less digits than its factorization.

212022202022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748800.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212022202022121 its reverse (121220202220212), we get a palindrome (333242404242333).

The spelling of 212022202022121 in words is "two hundred twelve trillion, twenty-two billion, two hundred two million, twenty-two thousand, one hundred twenty-one".