1222220121232 has 20 divisors (see below), whose sum is σ = 2583328892976. Its totient is φ = 555554600480.

The previous prime is 1222220121223. The next prime is 1222220121247. The reversal of 1222220121232 is 2321210222221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472216078 + ... + 3472216429.

Almost surely, 2^{1222220121232} is an apocalyptic number.

It is an amenable number.

1222220121232 is an abundant number, since it is smaller than the sum of its proper divisors (1361108771744).

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

1222220121232 is a wasteful number, since it uses less digits than its factorization.

1222220121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944432526 (or 6944432520 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1222220121232 its reverse (2321210222221), we get a palindrome (3543430343453).

The spelling of 1222220121232 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred thirty-two".