2100722 has 16 divisors (see below), whose sum is σ = 3474240. Its totient is φ = 946512.

The previous prime is 2100719. The next prime is 2100727. The reversal of 2100722 is 2270012.

It is a super-3 number, since 3×2100722³ = 27811666033396701144, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100697 and 2100706.

It is not an unprimeable number, because it can be changed into a prime (2100727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (217140).

2^2100722 is an apocalyptic number.

2100722 is a deficient number, since it is larger than the sum of its proper divisors (1373518).

2100722 is a wasteful number, since it uses less digits than its factorization.

2100722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2100722 is about 1449.3867668776. The cubic root of 2100722 is about 128.0725906609.

Adding to 2100722 its reverse (2270012), we get a palindrome (4370734).

The spelling of 2100722 in words is "two million, one hundred thousand, seven hundred twenty-two".