20000202221969 has 2 divisors, whose sum is σ = 20000202221970. Its totient is φ = 20000202221968.

The previous prime is 20000202221947. The next prime is 20000202222029. The reversal of 20000202221969 is 96912220200002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12119763009025 + 7880439212944 = 3481345^2 + 2807212^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000202221969 - 2¹⁶ = 20000202156433 is a prime.

It is a super-2 number, since 2×20000202221969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20000202221929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000101110984 + 10000101110985.

It is an arithmetic number, because the mean of its divisors is an integer number (10000101110985).

Almost surely, 2^{20000202221969} is an apocalyptic number.

It is an amenable number.

20000202221969 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000202221969 is an equidigital number, since it uses as much as digits as its factorization.

20000202221969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 20000202221969 in words is "twenty trillion, two hundred two million, two hundred twenty-one thousand, nine hundred sixty-nine".