121021210201963 has 2 divisors, whose sum is σ = 121021210201964. Its totient is φ = 121021210201962.

The previous prime is 121021210201943. The next prime is 121021210202051. The reversal of 121021210201963 is 369102012120121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121021210201963 is a prime.

It is a super-2 number, since 2×121021210201963² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121021210201943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510605100981 + 60510605100982.

It is an arithmetic number, because the mean of its divisors is an integer number (60510605100982).

Almost surely, 2^{121021210201963} is an apocalyptic number.

121021210201963 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021210201963 is an equidigital number, since it uses as much as digits as its factorization.

121021210201963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 121021210201963 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred ten million, two hundred one thousand, nine hundred sixty-three".