20220209873 has 2 divisors, whose sum is σ = 20220209874. Its totient is φ = 20220209872.

The previous prime is 20220209831. The next prime is 20220209909. The reversal of 20220209873 is 37890202202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15141794704 + 5078415169 = 123052^2 + 71263^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220209873 - 2¹⁴ = 20220193489 is a prime.

It is a super-2 number, since 2×20220209873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20220209813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110104936 + 10110104937.

It is an arithmetic number, because the mean of its divisors is an integer number (10110104937).

Almost surely, 2^20220209873 is an apocalyptic number.

It is an amenable number.

20220209873 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220209873 is an equidigital number, since it uses as much as digits as its factorization.

20220209873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20220209873 in words is "twenty billion, two hundred twenty million, two hundred nine thousand, eight hundred seventy-three".