2122220109 has 32 divisors (see below), whose sum is σ = 3048523776. Its totient is φ = 1308384000.

The previous prime is 2122220101. The next prime is 2122220119. The reversal of 2122220109 is 9010222212.

It is a happy number.

It is not a de Polignac number, because 2122220109 - 2³ = 2122220101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122220101) 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, 2565754 + ... + 2566580.

It is an arithmetic number, because the mean of its divisors is an integer number (95266368).

Almost surely, 2^2122220109 is an apocalyptic number.

It is an amenable number.

2122220109 is a deficient number, since it is larger than the sum of its proper divisors (926303667).

2122220109 is a wasteful number, since it uses less digits than its factorization.

2122220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2122220109 is about 46067.5602675028. The cubic root of 2122220109 is about 1285.0799324480.

The spelling of 2122220109 in words is "two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred nine".