101220099899 has 2 divisors, whose sum is σ = 101220099900. Its totient is φ = 101220099898.

The previous prime is 101220099889. The next prime is 101220099979. The reversal of 101220099899 is 998990022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220099899 - 2¹² = 101220095803 is a prime.

It is not a weakly prime, because it can be changed into another prime (101220099889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610049949 + 50610049950.

It is an arithmetic number, because the mean of its divisors is an integer number (50610049950).

Almost surely, 2^101220099899 is an apocalyptic number.

101220099899 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220099899 is an equidigital number, since it uses as much as digits as its factorization.

101220099899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 101220099899 in words is "one hundred one billion, two hundred twenty million, ninety-nine thousand, eight hundred ninety-nine".