2221000023 has 32 divisors (see below), whose sum is σ = 3284709120. Its totient is φ = 1323682560.

The previous prime is 2220999997. The next prime is 2221000043. The reversal of 2221000023 is 3200001222.

It is a de Polignac number, because none of the positive numbers 2^k-2221000023 is a prime.

It is a super-2 number, since 2×2221000023² = 9865682204332001058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220999972 and 2221000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000043) 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, 490536 + ... + 495042.

It is an arithmetic number, because the mean of its divisors is an integer number (102647160).

Almost surely, 2^2221000023 is an apocalyptic number.

2221000023 is a deficient number, since it is larger than the sum of its proper divisors (1063709097).

2221000023 is a wasteful number, since it uses less digits than its factorization.

2221000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2221000023 is about 47127.4869158117. The cubic root of 2221000023 is about 1304.7165991075.

Adding to 2221000023 its reverse (3200001222), we get a palindrome (5421001245).

The spelling of 2221000023 in words is "two billion, two hundred twenty-one million, twenty-three", and thus it is an aban number.