2122211112021 has 96 divisors (see below), whose sum is σ = 4116440659968. Its totient is φ = 1017486126720.

The previous prime is 2122211112011. The next prime is 2122211112127. The reversal of 2122211112021 is 1202111122212.

It is not a de Polignac number, because 2122211112021 - 2⁵ = 2122211111989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122211111985 and 2122211112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122211112011) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 75544440 + ... + 75572526.

It is an arithmetic number, because the mean of its divisors is an integer number (42879590208).

Almost surely, 2^{2122211112021} is an apocalyptic number.

2122211112021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2122211112021 is a deficient number, since it is larger than the sum of its proper divisors (1994229547947).

2122211112021 is a wasteful number, since it uses less digits than its factorization.

2122211112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36511 (or 36508 counting only the distinct ones).

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

Adding to 2122211112021 its reverse (1202111122212), we get a palindrome (3324322234233).

The spelling of 2122211112021 in words is "two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, twenty-one".