2100022312 has 8 divisors (see below), whose sum is σ = 3937541850. Its totient is φ = 1050011152.

The previous prime is 2100022307. The next prime is 2100022333. The reversal of 2100022312 is 2132200012.

It can be written as a sum of positive squares in only one way, i.e., 2100022276 + 36 = 45826^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2100022292 and 2100022301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131251387 + ... + 131251402.

Almost surely, 2^2100022312 is an apocalyptic number.

It is an amenable number.

2100022312 is a deficient number, since it is larger than the sum of its proper divisors (1837519538).

2100022312 is a wasteful number, since it uses less digits than its factorization.

2100022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262502795 (or 262502791 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2100022312 is about 45826.0003927901. Note that the first 3 decimals coincide. The cubic root of 2100022312 is about 1280.5837002543.

Adding to 2100022312 its reverse (2132200012), we get a palindrome (4232222324).

The spelling of 2100022312 in words is "two billion, one hundred million, twenty-two thousand, three hundred twelve".