20101202211499 has 2 divisors, whose sum is σ = 20101202211500. Its totient is φ = 20101202211498.

The previous prime is 20101202211491. The next prime is 20101202211509. The reversal of 20101202211499 is 99411220210102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20101202211499 - 2³ = 20101202211491 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101202211491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050601105749 + 10050601105750.

It is an arithmetic number, because the mean of its divisors is an integer number (10050601105750).

Almost surely, 2^{20101202211499} is an apocalyptic number.

20101202211499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101202211499 is an equidigital number, since it uses as much as digits as its factorization.

20101202211499 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 spelling of 20101202211499 in words is "twenty trillion, one hundred one billion, two hundred two million, two hundred eleven thousand, four hundred ninety-nine".