2021222211099 has 128 divisors (see below), whose sum is σ = 3428423319552. Its totient is φ = 1030679562240.

The previous prime is 2021222211089. The next prime is 2021222211181. The reversal of 2021222211099 is 9901122221202.

It is not a de Polignac number, because 2021222211099 - 2⁹ = 2021222210587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021222211079) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1289866614 + ... + 1289868180.

It is an arithmetic number, because the mean of its divisors is an integer number (26784557184).

Almost surely, 2^{2021222211099} is an apocalyptic number.

2021222211099 is a deficient number, since it is larger than the sum of its proper divisors (1407201108453).

2021222211099 is a wasteful number, since it uses less digits than its factorization.

2021222211099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 2021222211099 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred eleven thousand, ninety-nine".