1220440231099 has 2 divisors, whose sum is σ = 1220440231100. Its totient is φ = 1220440231098.

The previous prime is 1220440231019. The next prime is 1220440231133. The reversal of 1220440231099 is 9901320440221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220440231099 - 2¹¹ = 1220440229051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220440231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610220115549 + 610220115550.

It is an arithmetic number, because the mean of its divisors is an integer number (610220115550).

Almost surely, 2^{1220440231099} is an apocalyptic number.

1220440231099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220440231099 is an equidigital number, since it uses as much as digits as its factorization.

1220440231099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 1220440231099 in words is "one trillion, two hundred twenty billion, four hundred forty million, two hundred thirty-one thousand, ninety-nine".