22002021123 has 8 divisors (see below), whose sum is σ = 29960199168. Its totient is φ = 14355928584.

The previous prime is 22002021113. The next prime is 22002021143. The reversal of 22002021123 is 32112020022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22002021123 - 2⁸ = 22002020867 is a prime.

It is a super-2 number, since 2×22002021123² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22002021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78021211 + ... + 78021492.

It is an arithmetic number, because the mean of its divisors is an integer number (3745024896).

Almost surely, 2^22002021123 is an apocalyptic number.

22002021123 is a deficient number, since it is larger than the sum of its proper divisors (7958178045).

22002021123 is a wasteful number, since it uses less digits than its factorization.

22002021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156042753.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22002021123 its reverse (32112020022), we get a palindrome (54114041145).

The spelling of 22002021123 in words is "twenty-two billion, two million, twenty-one thousand, one hundred twenty-three".