1021122026201 has 2 divisors, whose sum is σ = 1021122026202. Its totient is φ = 1021122026200.

The previous prime is 1021122026173. The next prime is 1021122026213. The reversal of 1021122026201 is 1026202211201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792413310976 + 228708715225 = 890176^2 + 478235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021122026201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021122026501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510561013100 + 510561013101.

It is an arithmetic number, because the mean of its divisors is an integer number (510561013101).

Almost surely, 2^{1021122026201} is an apocalyptic number.

It is an amenable number.

1021122026201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021122026201 is an equidigital number, since it uses as much as digits as its factorization.

1021122026201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1021122026201 its reverse (1026202211201), we get a palindrome (2047324237402).

The spelling of 1021122026201 in words is "one trillion, twenty-one billion, one hundred twenty-two million, twenty-six thousand, two hundred one".