11222121232 has 20 divisors (see below), whose sum is σ = 24848982976. Its totient is φ = 4809480480.

The previous prime is 11222121217. The next prime is 11222121233. The reversal of 11222121232 is 23212122211.

It is not an unprimeable number, because it can be changed into a prime (11222121233) 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, 50098644 + ... + 50098867.

Almost surely, 2^11222121232 is an apocalyptic number.

It is an amenable number.

11222121232 is an abundant number, since it is smaller than the sum of its proper divisors (13626861744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222121232 is a wasteful number, since it uses less digits than its factorization.

11222121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100197526 (or 100197520 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

Adding to 11222121232 its reverse (23212122211), we get a palindrome (34434243443).

The spelling of 11222121232 in words is "eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred thirty-two".