21022112010211 has 4 divisors (see below), whose sum is σ = 22639197549472. Its totient is φ = 19405026470952.

The previous prime is 21022112010203. The next prime is 21022112010269. The reversal of 21022112010211 is 11201021122012.

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 21022112010211 - 2³ = 21022112010203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022112017211) 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, 808542769611 + ... + 808542769636.

It is an arithmetic number, because the mean of its divisors is an integer number (5659799387368).

Almost surely, 2^{21022112010211} is an apocalyptic number.

21022112010211 is a deficient number, since it is larger than the sum of its proper divisors (1617085539261).

21022112010211 is a wasteful number, since it uses less digits than its factorization.

21022112010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617085539260.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21022112010211 its reverse (11201021122012), we get a palindrome (32223133132223).

The spelling of 21022112010211 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, ten thousand, two hundred eleven".