2101111402 has 32 divisors (see below), whose sum is σ = 3426917760. Its totient is φ = 960413760.

The previous prime is 2101111391. The next prime is 2101111417. The reversal of 2101111402 is 2041111012.

It is a super-2 number, since 2×2101111402² = 8829338247228811208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1520752 + ... + 1522132.

It is an arithmetic number, because the mean of its divisors is an integer number (107091180).

Almost surely, 2^2101111402 is an apocalyptic number.

2101111402 is a deficient number, since it is larger than the sum of its proper divisors (1325806358).

2101111402 is a wasteful number, since it uses less digits than its factorization.

2101111402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2101111402 is about 45837.8817355253. The cubic root of 2101111402 is about 1280.8050359782.

Adding to 2101111402 its reverse (2041111012), we get a palindrome (4142222414).

The spelling of 2101111402 in words is "two billion, one hundred one million, one hundred eleven thousand, four hundred two".