22021022211020 has 96 divisors (see below), whose sum is σ = 54511803335808. Its totient is φ = 7314480617472.

The previous prime is 22021022210963. The next prime is 22021022211031. The reversal of 22021022211020 is 2011222012022.

It is a happy number.

22021022211020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 22021022211020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7915727 + ... + 10329606.

It is an arithmetic number, because the mean of its divisors is an integer number (567831284748).

Almost surely, 2^{22021022211020} is an apocalyptic number.

22021022211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021022211020 is an abundant number, since it is smaller than the sum of its proper divisors (32490781124788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021022211020 is a wasteful number, since it uses less digits than its factorization.

22021022211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18245619 (or 18245617 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021022211020 its reverse (2011222012022), we get a palindrome (24032244223042).

The spelling of 22021022211020 in words is "twenty-two trillion, twenty-one billion, twenty-two million, two hundred eleven thousand, twenty".