22151121003 has 32 divisors (see below), whose sum is σ = 35901377280. Its totient is φ = 13386827520.

The previous prime is 22151120993. The next prime is 22151121029. The reversal of 22151121003 is 30012115122.

It is not a de Polignac number, because 22151121003 - 2¹⁸ = 22150858859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22151121053) 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, 801 + ... + 210482.

It is an arithmetic number, because the mean of its divisors is an integer number (1121918040).

Almost surely, 2^22151121003 is an apocalyptic number.

22151121003 is a deficient number, since it is larger than the sum of its proper divisors (13750256277).

22151121003 is a wasteful number, since it uses less digits than its factorization.

22151121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211656 (or 211650 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 22151121003 its reverse (30012115122), we get a palindrome (52163236125).

The spelling of 22151121003 in words is "twenty-two billion, one hundred fifty-one million, one hundred twenty-one thousand, three".