2101200122 has 16 divisors (see below), whose sum is σ = 3605651520. Its totient is φ = 899615808.

The previous prime is 2101200097. The next prime is 2101200137. The reversal of 2101200122 is 2210021012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60248 + ... + 88499.

It is an arithmetic number, because the mean of its divisors is an integer number (225353220).

Almost surely, 2^2101200122 is an apocalyptic number.

2101200122 is a deficient number, since it is larger than the sum of its proper divisors (1504451398).

2101200122 is a wasteful number, since it uses less digits than its factorization.

2101200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149765.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2101200122 is about 45838.8494838167. The cubic root of 2101200122 is about 1280.8230631713.

Adding to 2101200122 its reverse (2210021012), we get a palindrome (4311221134).

The spelling of 2101200122 in words is "two billion, one hundred one million, two hundred thousand, one hundred twenty-two".