1022112110521 has 2 divisors, whose sum is σ = 1022112110522. Its totient is φ = 1022112110520.

The previous prime is 1022112110473. The next prime is 1022112110527. The reversal of 1022112110521 is 1250112112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1008658662400 + 13453448121 = 1004320^2 + 115989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022112110521 - 2²⁹ = 1021575239609 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022112110527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511056055260 + 511056055261.

It is an arithmetic number, because the mean of its divisors is an integer number (511056055261).

Almost surely, 2^{1022112110521} is an apocalyptic number.

It is an amenable number.

1022112110521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022112110521 is an equidigital number, since it uses as much as digits as its factorization.

1022112110521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 1022112110521 its reverse (1250112112201), we get a palindrome (2272224222722).

The spelling of 1022112110521 in words is "one trillion, twenty-two billion, one hundred twelve million, one hundred ten thousand, five hundred twenty-one".