101221001121983 has 2 divisors, whose sum is σ = 101221001121984. Its totient is φ = 101221001121982.

The previous prime is 101221001121943. The next prime is 101221001122019. The reversal of 101221001121983 is 389121100122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221001121983 - 2¹⁶ = 101221001056447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221001121923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610500560991 + 50610500560992.

It is an arithmetic number, because the mean of its divisors is an integer number (50610500560992).

Almost surely, 2^{101221001121983} is an apocalyptic number.

101221001121983 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221001121983 is an equidigital number, since it uses as much as digits as its factorization.

101221001121983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 32.

The spelling of 101221001121983 in words is "one hundred one trillion, two hundred twenty-one billion, one million, one hundred twenty-one thousand, nine hundred eighty-three".