2101001223 has 32 divisors (see below), whose sum is σ = 2956953600. Its totient is φ = 1325174400.

The previous prime is 2101001207. The next prime is 2101001237. The reversal of 2101001223 is 3221001012.

It is not a de Polignac number, because 2101001223 - 2⁴ = 2101001207 is a prime.

It is a super-2 number, since 2×2101001223² = 8828412278094991458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101001199 and 2101001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101002223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014433 + ... + 1016501.

It is an arithmetic number, because the mean of its divisors is an integer number (92404800).

Almost surely, 2^2101001223 is an apocalyptic number.

2101001223 is a deficient number, since it is larger than the sum of its proper divisors (855952377).

2101001223 is a wasteful number, since it uses less digits than its factorization.

2101001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2101001223 is about 45836.6798863094. The cubic root of 2101001223 is about 1280.7826477817.

Adding to 2101001223 its reverse (3221001012), we get a palindrome (5322002235).

The spelling of 2101001223 in words is "two billion, one hundred one million, one thousand, two hundred twenty-three".