202230210109981 has 2 divisors, whose sum is σ = 202230210109982. Its totient is φ = 202230210109980.

The previous prime is 202230210109931. The next prime is 202230210110011. The reversal of 202230210109981 is 189901012032202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138431108205625 + 63799101904356 = 11765675^2 + 7987434^2 .

It is a cyclic number.

It is not a de Polignac number, because 202230210109981 - 2¹³ = 202230210101789 is a prime.

It is a super-2 number, since 2×202230210109981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202230210109931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101115105054990 + 101115105054991.

It is an arithmetic number, because the mean of its divisors is an integer number (101115105054991).

Almost surely, 2^{202230210109981} is an apocalyptic number.

It is an amenable number.

202230210109981 is a deficient number, since it is larger than the sum of its proper divisors (1).

202230210109981 is an equidigital number, since it uses as much as digits as its factorization.

202230210109981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 202230210109981 in words is "two hundred two trillion, two hundred thirty billion, two hundred ten million, one hundred nine thousand, nine hundred eighty-one".