1222011022212 has 36 divisors (see below), whose sum is σ = 3126188847600. Its totient is φ = 402429331632.

The previous prime is 1222011022189. The next prime is 1222011022231. The reversal of 1222011022212 is 2122201102221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204483462 + ... + 204489437.

It is an arithmetic number, because the mean of its divisors is an integer number (86838579100).

Almost surely, 2^{1222011022212} is an apocalyptic number.

1222011022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222011022212 is an abundant number, since it is smaller than the sum of its proper divisors (1904177825388).

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

1222011022212 is a wasteful number, since it uses less digits than its factorization.

1222011022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408972992 (or 408972987 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222011022212 its reverse (2122201102221), we get a palindrome (3344212124433).

It can be divided in two parts, 122201102221 and 2, that multiplied together give a palindrome (244402204442).

The spelling of 1222011022212 in words is "one trillion, two hundred twenty-two billion, eleven million, twenty-two thousand, two hundred twelve".