22121351203 has 6 divisors (see below), whose sum is σ = 25733000436. Its totient is φ = 18961158132.

The previous prime is 22121351173. The next prime is 22121351221. The reversal of 22121351203 is 30215312122.

It is a de Polignac number, because none of the positive numbers 2^k-22121351203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121352203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225728025 + ... + 225728122.

It is an arithmetic number, because the mean of its divisors is an integer number (4288833406).

Almost surely, 2^22121351203 is an apocalyptic number.

22121351203 is a deficient number, since it is larger than the sum of its proper divisors (3611649233).

22121351203 is an equidigital number, since it uses as much as digits as its factorization.

22121351203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451456161 (or 451456154 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 22121351203 its reverse (30215312122), we get a palindrome (52336663325).

The spelling of 22121351203 in words is "twenty-two billion, one hundred twenty-one million, three hundred fifty-one thousand, two hundred three".