10002220123 has 4 divisors (see below), whose sum is σ = 11431108720. Its totient is φ = 8573331528.

The previous prime is 10002220121. The next prime is 10002220169. The reversal of 10002220123 is 32102220001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002220123 - 2¹ = 10002220121 is a prime.

It is a super-2 number, since 2×10002220123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10002220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714444288 + ... + 714444301.

It is an arithmetic number, because the mean of its divisors is an integer number (2857777180).

Almost surely, 2^10002220123 is an apocalyptic number.

10002220123 is a deficient number, since it is larger than the sum of its proper divisors (1428888597).

10002220123 is an equidigital number, since it uses as much as digits as its factorization.

10002220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428888596.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10002220123 its reverse (32102220001), we get a palindrome (42104440124).

The spelling of 10002220123 in words is "ten billion, two million, two hundred twenty thousand, one hundred twenty-three".