2221021020099 has 16 divisors (see below), whose sum is σ = 3448269833472. Its totient is φ = 1245208549728.

The previous prime is 2221021020017. The next prime is 2221021020137. The reversal of 2221021020099 is 9900201201222.

It is not a de Polignac number, because 2221021020099 - 2²³ = 2221012631491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221021020299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 997762149 + ... + 997764374.

It is an arithmetic number, because the mean of its divisors is an integer number (215516864592).

Almost surely, 2^{2221021020099} is an apocalyptic number.

2221021020099 is a deficient number, since it is larger than the sum of its proper divisors (1227248813373).

2221021020099 is a wasteful number, since it uses less digits than its factorization.

2221021020099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995526586.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 2221021020099 in words is "two trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, ninety-nine".