221212102097963 has 2 divisors, whose sum is σ = 221212102097964. Its totient is φ = 221212102097962.

The previous prime is 221212102097941. The next prime is 221212102097999. The reversal of 221212102097963 is 369790201212122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221212102097963 is a prime.

It is a super-2 number, since 2×221212102097963² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221212102027963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110606051048981 + 110606051048982.

It is an arithmetic number, because the mean of its divisors is an integer number (110606051048982).

Almost surely, 2^{221212102097963} is an apocalyptic number.

221212102097963 is a deficient number, since it is larger than the sum of its proper divisors (1).

221212102097963 is an equidigital number, since it uses as much as digits as its factorization.

221212102097963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 221212102097963 in words is "two hundred twenty-one trillion, two hundred twelve billion, one hundred two million, ninety-seven thousand, nine hundred sixty-three".