2100000022 has 4 divisors (see below), whose sum is σ = 3150000036. Its totient is φ = 1050000010.

The previous prime is 2100000017. The next prime is 2100000053. The reversal of 2100000022 is 2200000012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2099999960 and 2100000014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525000004 + ... + 525000007.

It is an arithmetic number, because the mean of its divisors is an integer number (787500009).

Almost surely, 2^2100000022 is an apocalyptic number.

2100000022 is a deficient number, since it is larger than the sum of its proper divisors (1050000014).

2100000022 is a wasteful number, since it uses less digits than its factorization.

2100000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050000013.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2100000022 is about 45825.7571895981. The cubic root of 2100000022 is about 1280.5791694594.

Adding to 2100000022 its reverse (2200000012), we get a palindrome (4300000034).

The spelling of 2100000022 in words is "two billion, one hundred million, twenty-two", and thus it is an aban number.