20100020220099 has 24 divisors (see below), whose sum is σ = 31417744979712. Its totient is φ = 12817404194760.

The previous prime is 20100020220079. The next prime is 20100020220127. The reversal of 20100020220099 is 99002202000102.

It is not a de Polignac number, because 20100020220099 - 2²³ = 20100011831491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20100020220079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1798171207 + ... + 1798182384.

It is an arithmetic number, because the mean of its divisors is an integer number (1309072707488).

Almost surely, 2^{20100020220099} is an apocalyptic number.

20100020220099 is a deficient number, since it is larger than the sum of its proper divisors (11317724759613).

20100020220099 is an equidigital number, since it uses as much as digits as its factorization.

20100020220099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596353629 (or 3596353617 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 20100020220099 in words is "twenty trillion, one hundred billion, twenty million, two hundred twenty thousand, ninety-nine".