221202000200981 has 2 divisors, whose sum is σ = 221202000200982. Its totient is φ = 221202000200980.

The previous prime is 221202000200861. The next prime is 221202000201023. The reversal of 221202000200981 is 189002000202122.

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., 174951677224900 + 46250322976081 = 13226930^2 + 6800759^2 .

It is a cyclic number.

It is not a de Polignac number, because 221202000200981 - 2¹⁴ = 221202000184597 is a prime.

It is a super-2 number, since 2×221202000200981² (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 (221202000200581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110601000100490 + 110601000100491.

It is an arithmetic number, because the mean of its divisors is an integer number (110601000100491).

Almost surely, 2^{221202000200981} is an apocalyptic number.

It is an amenable number.

221202000200981 is a deficient number, since it is larger than the sum of its proper divisors (1).

221202000200981 is an equidigital number, since it uses as much as digits as its factorization.

221202000200981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 221202000200981 in words is "two hundred twenty-one trillion, two hundred two billion, two hundred thousand, nine hundred eighty-one".