101220010049 has 2 divisors, whose sum is σ = 101220010050. Its totient is φ = 101220010048.

The previous prime is 101220010043. The next prime is 101220010103. The reversal of 101220010049 is 940010022101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92785424449 + 8434585600 = 304607^2 + 91840^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220010049 - 2⁴ = 101220010033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101220010049.

It is not a weakly prime, because it can be changed into another prime (101220010043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610005024 + 50610005025.

It is an arithmetic number, because the mean of its divisors is an integer number (50610005025).

Almost surely, 2^101220010049 is an apocalyptic number.

It is an amenable number.

101220010049 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220010049 is an equidigital number, since it uses as much as digits as its factorization.

101220010049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 101220010049 in words is "one hundred one billion, two hundred twenty million, ten thousand, forty-nine".