121221202101283 has 2 divisors, whose sum is σ = 121221202101284. Its totient is φ = 121221202101282.

The previous prime is 121221202101161. The next prime is 121221202101347. The reversal of 121221202101283 is 382101202122121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121221202101283 is a prime.

It is not a weakly prime, because it can be changed into another prime (121221202101583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610601050641 + 60610601050642.

It is an arithmetic number, because the mean of its divisors is an integer number (60610601050642).

Almost surely, 2^{121221202101283} is an apocalyptic number.

121221202101283 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221202101283 is an equidigital number, since it uses as much as digits as its factorization.

121221202101283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 121221202101283 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred two million, one hundred one thousand, two hundred eighty-three".