2101504122 has 32 divisors (see below), whose sum is σ = 4729132800. Its totient is φ = 691632864.

The previous prime is 2101504121. The next prime is 2101504151. The reversal of 2101504122 is 2214051012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2101504095 and 2101504104.

It is not an unprimeable number, because it can be changed into a prime (2101504121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242043 + ... + 250574.

It is an arithmetic number, because the mean of its divisors is an integer number (147785400).

Almost surely, 2^2101504122 is an apocalyptic number.

2101504122 is an abundant number, since it is smaller than the sum of its proper divisors (2627628678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101504122 is a wasteful number, since it uses less digits than its factorization.

2101504122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492707 (or 492701 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2101504122 is about 45842.1653284397. The cubic root of 2101504122 is about 1280.8848296876.

Adding to 2101504122 its reverse (2214051012), we get a palindrome (4315555134).

The spelling of 2101504122 in words is "two billion, one hundred one million, five hundred four thousand, one hundred twenty-two".