20512212022563 has 4 divisors (see below), whose sum is σ = 27349616030088. Its totient is φ = 13674808015040.

The previous prime is 20512212022543. The next prime is 20512212022619. The reversal of 20512212022563 is 36522021221502.

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 20512212022563 - 2¹⁴ = 20512212006179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20512212022513) 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, 3418702003758 + ... + 3418702003763.

It is an arithmetic number, because the mean of its divisors is an integer number (6837404007522).

Almost surely, 2^{20512212022563} is an apocalyptic number.

20512212022563 is a deficient number, since it is larger than the sum of its proper divisors (6837404007525).

20512212022563 is an equidigital number, since it uses as much as digits as its factorization.

20512212022563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837404007524.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 20512212022563 in words is "twenty trillion, five hundred twelve billion, two hundred twelve million, twenty-two thousand, five hundred sixty-three".