22003121013 has 16 divisors (see below), whose sum is σ = 29409415296. Its totient is φ = 14632833600.

The previous prime is 22003120999. The next prime is 22003121033. The reversal of 22003121013 is 31012130022.

It is not a de Polignac number, because 22003121013 - 2⁶ = 22003120949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22003120983 and 22003121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003121033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2217363 + ... + 2227263.

It is an arithmetic number, because the mean of its divisors is an integer number (1838088456).

Almost surely, 2^22003121013 is an apocalyptic number.

It is an amenable number.

22003121013 is a deficient number, since it is larger than the sum of its proper divisors (7406294283).

22003121013 is an equidigital number, since it uses as much as digits as its factorization.

22003121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11644.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22003121013 its reverse (31012130022), we get a palindrome (53015251035).

Subtracting 22003121013 from its reverse (31012130022), we obtain a palindrome (9009009009).

It can be divided in two parts, 2200 and 3121013, that added together give a palindrome (3123213).

The spelling of 22003121013 in words is "twenty-two billion, three million, one hundred twenty-one thousand, thirteen".