212111122021202 has 16 divisors (see below), whose sum is σ = 332788615722432. Its totient is φ = 101203488965040.

The previous prime is 212111122021199. The next prime is 212111122021291. The reversal of 212111122021202 is 202120221111212.

It is a super-2 number, since 2×212111122021202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5476359908 + ... + 5476398639.

It is an arithmetic number, because the mean of its divisors is an integer number (20799288482652).

Almost surely, 2^{212111122021202} is an apocalyptic number.

212111122021202 is a deficient number, since it is larger than the sum of its proper divisors (120677493701230).

212111122021202 is a wasteful number, since it uses less digits than its factorization.

212111122021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10952758993.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212111122021202 its reverse (202120221111212), we get a palindrome (414231343132414).

The spelling of 212111122021202 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred two".