2001020202099 has 32 divisors (see below), whose sum is σ = 3035537280000. Its totient is φ = 1302184955232.

The previous prime is 2001020202031. The next prime is 2001020202101. The reversal of 2001020202099 is 9902020201002.

It is not a de Polignac number, because 2001020202099 - 2²³ = 2001011813491 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 (2001020202029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1599324 + ... + 2561225.

It is an arithmetic number, because the mean of its divisors is an integer number (94860540000).

Almost surely, 2^{2001020202099} is an apocalyptic number.

2001020202099 is a deficient number, since it is larger than the sum of its proper divisors (1034517077901).

2001020202099 is a wasteful number, since it uses less digits than its factorization.

2001020202099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160984 (or 4160978 counting only the distinct ones).

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

The spelling of 2001020202099 in words is "two trillion, one billion, twenty million, two hundred two thousand, ninety-nine".