22211111020021 has 32 divisors (see below), whose sum is σ = 29191916160000. Its totient is φ = 16372438346880.

The previous prime is 22211111020009. The next prime is 22211111020057. The reversal of 22211111020021 is 12002011111222.

It is not a de Polignac number, because 22211111020021 - 2¹¹ = 22211111017973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22211111019977 and 22211111020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211111020421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10114896 + ... + 12113353.

It is an arithmetic number, because the mean of its divisors is an integer number (912247380000).

Almost surely, 2^{22211111020021} is an apocalyptic number.

It is an amenable number.

22211111020021 is a deficient number, since it is larger than the sum of its proper divisors (6980805139979).

22211111020021 is a wasteful number, since it uses less digits than its factorization.

22211111020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22228969.

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

Adding to 22211111020021 its reverse (12002011111222), we get a palindrome (34213122131243).

The spelling of 22211111020021 in words is "twenty-two trillion, two hundred eleven billion, one hundred eleven million, twenty thousand, twenty-one".