2101631422 has 32 divisors (see below), whose sum is σ = 3563771904. Its totient is φ = 920877600.

The previous prime is 2101631393. The next prime is 2101631447. The reversal of 2101631422 is 2241361012.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2101631393 and 2101631402.

It is a congruent number.

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, 173508 + ... + 185224.

It is an arithmetic number, because the mean of its divisors is an integer number (111367872).

Almost surely, 2^2101631422 is an apocalyptic number.

2101631422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101631422 is a deficient number, since it is larger than the sum of its proper divisors (1462140482).

2101631422 is a wasteful number, since it uses less digits than its factorization.

2101631422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2101631422 is about 45843.5537671328. The cubic root of 2101631422 is about 1280.9106926469.

Adding to 2101631422 its reverse (2241361012), we get a palindrome (4342992434).

The spelling of 2101631422 in words is "two billion, one hundred one million, six hundred thirty-one thousand, four hundred twenty-two".