101201021220149 has 2 divisors, whose sum is σ = 101201021220150. Its totient is φ = 101201021220148.

The previous prime is 101201021220137. The next prime is 101201021220203. The reversal of 101201021220149 is 941022120102101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67562761197649 + 33638260022500 = 8219657^2 + 5799850^2 .

It is a cyclic number.

It is not a de Polignac number, because 101201021220149 - 2²⁸ = 101200752784693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101201021220749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600510610074 + 50600510610075.

It is an arithmetic number, because the mean of its divisors is an integer number (50600510610075).

Almost surely, 2^{101201021220149} is an apocalyptic number.

It is an amenable number.

101201021220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201021220149 is an equidigital number, since it uses as much as digits as its factorization.

101201021220149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 101201021220149 in words is "one hundred one trillion, two hundred one billion, twenty-one million, two hundred twenty thousand, one hundred forty-nine".