202001021069 has 2 divisors, whose sum is σ = 202001021070. Its totient is φ = 202001021068.

The previous prime is 202001021063. The next prime is 202001021111. The reversal of 202001021069 is 960120100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197457587044 + 4543434025 = 444362^2 + 67405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202001021069 is a prime.

It is a super-2 number, since 2×202001021069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202001021063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101000510534 + 101000510535.

It is an arithmetic number, because the mean of its divisors is an integer number (101000510535).

Almost surely, 2^202001021069 is an apocalyptic number.

It is an amenable number.

202001021069 is a deficient number, since it is larger than the sum of its proper divisors (1).

202001021069 is an equidigital number, since it uses as much as digits as its factorization.

202001021069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 202001021069 in words is "two hundred two billion, one million, twenty-one thousand, sixty-nine".