1211102222232 has 128 divisors (see below), whose sum is σ = 3465835315200. Its totient is φ = 345475456128.

The previous prime is 1211102222173. The next prime is 1211102222233. The reversal of 1211102222232 is 2322222011121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1211102222199 and 1211102222208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211102222233) 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, 445420569 + ... + 445423287.

It is an arithmetic number, because the mean of its divisors is an integer number (27076838400).

Almost surely, 2^{1211102222232} is an apocalyptic number.

1211102222232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211102222232 is an abundant number, since it is smaller than the sum of its proper divisors (2254733092968).

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

1211102222232 is a wasteful number, since it uses less digits than its factorization.

1211102222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005 (or 6001 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1211102222232 its reverse (2322222011121), we get a palindrome (3533324233353).

The spelling of 1211102222232 in words is "one trillion, two hundred eleven billion, one hundred two million, two hundred twenty-two thousand, two hundred thirty-two".