20221110021021 has 16 divisors (see below), whose sum is σ = 33183360034944. Its totient is φ = 10666080010944.

The previous prime is 20221110020999. The next prime is 20221110021023. The reversal of 20221110021021 is 12012001112202.

It is not a de Polignac number, because 20221110021021 - 2⁹ = 20221110020509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221110021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37034999766 + ... + 37035000311.

It is an arithmetic number, because the mean of its divisors is an integer number (2073960002184).

Almost surely, 2^{20221110021021} is an apocalyptic number.

20221110021021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20221110021021 is a deficient number, since it is larger than the sum of its proper divisors (12962250013923).

20221110021021 is a wasteful number, since it uses less digits than its factorization.

20221110021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74070000100.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20221110021021 its reverse (12012001112202), we get a palindrome (32233111133223).

The spelling of 20221110021021 in words is "twenty trillion, two hundred twenty-one billion, one hundred ten million, twenty-one thousand, twenty-one".