1021122201139 has 2 divisors, whose sum is σ = 1021122201140. Its totient is φ = 1021122201138.

The previous prime is 1021122201101. The next prime is 1021122201259. The reversal of 1021122201139 is 9311022211201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021122201139 - 2²¹ = 1021120103987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021122201439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510561100569 + 510561100570.

It is an arithmetic number, because the mean of its divisors is an integer number (510561100570).

Almost surely, 2^{1021122201139} is an apocalyptic number.

1021122201139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021122201139 is an equidigital number, since it uses as much as digits as its factorization.

1021122201139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 1021122201139 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred one thousand, one hundred thirty-nine".