1122020921111 has 2 divisors, whose sum is σ = 1122020921112. Its totient is φ = 1122020921110.

The previous prime is 1122020921003. The next prime is 1122020921143. The reversal of 1122020921111 is 1111290202211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1122020921111 - 2¹⁴ = 1122020904727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122020924111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561010460555 + 561010460556.

It is an arithmetic number, because the mean of its divisors is an integer number (561010460556).

Almost surely, 2^{1122020921111} is an apocalyptic number.

1122020921111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122020921111 is an equidigital number, since it uses as much as digits as its factorization.

1122020921111 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 23.

The spelling of 1122020921111 in words is "one trillion, one hundred twenty-two billion, twenty million, nine hundred twenty-one thousand, one hundred eleven".