101220221933 has 2 divisors, whose sum is σ = 101220221934. Its totient is φ = 101220221932.

The previous prime is 101220221929. The next prime is 101220222011. The reversal of 101220221933 is 339122022101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60247175209 + 40973046724 = 245453^2 + 202418^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220221933 - 2² = 101220221929 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220221923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610110966 + 50610110967.

It is an arithmetic number, because the mean of its divisors is an integer number (50610110967).

Almost surely, 2^101220221933 is an apocalyptic number.

It is an amenable number.

101220221933 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220221933 is an equidigital number, since it uses as much as digits as its factorization.

101220221933 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 26.

The spelling of 101220221933 in words is "one hundred one billion, two hundred twenty million, two hundred twenty-one thousand, nine hundred thirty-three".