1220102899 has 2 divisors, whose sum is σ = 1220102900. Its totient is φ = 1220102898.

The previous prime is 1220102893. The next prime is 1220102921. The reversal of 1220102899 is 9982010221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220102899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220102893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610051449 + 610051450.

It is an arithmetic number, because the mean of its divisors is an integer number (610051450).

Almost surely, 2^1220102899 is an apocalyptic number.

1220102899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220102899 is an equidigital number, since it uses as much as digits as its factorization.

1220102899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1220102899 is about 34929.9713569880. The cubic root of 1220102899 is about 1068.5597704630.

The spelling of 1220102899 in words is "one billion, two hundred twenty million, one hundred two thousand, eight hundred ninety-nine".