22012022021023 has 4 divisors (see below), whose sum is σ = 22523929509928. Its totient is φ = 21500114532120.

The previous prime is 22012022020943. The next prime is 22012022021047. The reversal of 22012022021023 is 32012022021022.

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 22012022021023 - 2¹⁷ = 22012021889951 is a prime.

It is a super-2 number, since 2×22012022021023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012022024023) 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, 255953744388 + ... + 255953744473.

It is an arithmetic number, because the mean of its divisors is an integer number (5630982377482).

Almost surely, 2^{22012022021023} is an apocalyptic number.

22012022021023 is a deficient number, since it is larger than the sum of its proper divisors (511907488905).

22012022021023 is an equidigital number, since it uses as much as digits as its factorization.

22012022021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511907488904.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22012022021023 its reverse (32012022021022), we get a palindrome (54024044042045).

Subtracting 22012022021023 from its reverse (32012022021022), we obtain a palindrome (9999999999999).

The spelling of 22012022021023 in words is "twenty-two trillion, twelve billion, twenty-two million, twenty-one thousand, twenty-three".