20202212222111 has 4 divisors (see below), whose sum is σ = 20898840229800. Its totient is φ = 19505584214424.

The previous prime is 20202212222069. The next prime is 20202212222149. The reversal of 20202212222111 is 11122221220202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20202212222111 - 2³⁰ = 20201138480287 is a prime.

It is a super-2 number, since 2×20202212222111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202212222411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348314003801 + ... + 348314003858.

It is an arithmetic number, because the mean of its divisors is an integer number (5224710057450).

Almost surely, 2^{20202212222111} is an apocalyptic number.

20202212222111 is a deficient number, since it is larger than the sum of its proper divisors (696628007689).

20202212222111 is an equidigital number, since it uses as much as digits as its factorization.

20202212222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696628007688.

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

Adding to 20202212222111 its reverse (11122221220202), we get a palindrome (31324433442313).

The spelling of 20202212222111 in words is "twenty trillion, two hundred two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred eleven".