101012122202021 has 2 divisors, whose sum is σ = 101012122202022. Its totient is φ = 101012122202020.

The previous prime is 101012122201967. The next prime is 101012122202041. The reversal of 101012122202021 is 120202221210101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77037291313921 + 23974830888100 = 8777089^2 + 4896410^2 .

It is a cyclic number.

It is not a de Polignac number, because 101012122202021 - 2⁶ = 101012122201957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101012122202041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506061101010 + 50506061101011.

It is an arithmetic number, because the mean of its divisors is an integer number (50506061101011).

Almost surely, 2^{101012122202021} is an apocalyptic number.

It is an amenable number.

101012122202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012122202021 is an equidigital number, since it uses as much as digits as its factorization.

101012122202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101012122202021 its reverse (120202221210101), we get a palindrome (221214343412122).

The spelling of 101012122202021 in words is "one hundred one trillion, twelve billion, one hundred twenty-two million, two hundred two thousand, twenty-one".