221010102001963 has 2 divisors, whose sum is σ = 221010102001964. Its totient is φ = 221010102001962.

The previous prime is 221010102001951. The next prime is 221010102002029. The reversal of 221010102001963 is 369100201010122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221010102001963 is a prime.

It is not a weakly prime, because it can be changed into another prime (221010102001463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505051000981 + 110505051000982.

It is an arithmetic number, because the mean of its divisors is an integer number (110505051000982).

Almost surely, 2^{221010102001963} is an apocalyptic number.

221010102001963 is a deficient number, since it is larger than the sum of its proper divisors (1).

221010102001963 is an equidigital number, since it uses as much as digits as its factorization.

221010102001963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 221010102001963 in words is "two hundred twenty-one trillion, ten billion, one hundred two million, one thousand, nine hundred sixty-three".