1222131120444 has 120 divisors (see below), whose sum is σ = 3441199663440. Its totient is φ = 375980610816.

The previous prime is 1222131120421. The next prime is 1222131120467. The reversal of 1222131120444 is 4440211312221.

1222131120444 is a `hidden beast` number, since 1 + 2 + 2 + 213 + 1 + 1 + 2 + 0 + 444 = 666.

It is an interprime number because it is at equal distance from previous prime (1222131120421) and next prime (1222131120467).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31667592 + ... + 31706160.

It is an arithmetic number, because the mean of its divisors is an integer number (28676663862).

Almost surely, 2^{1222131120444} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222131120444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720599831720).

1222131120444 is an abundant number, since it is smaller than the sum of its proper divisors (2219068542996).

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

1222131120444 is a wasteful number, since it uses less digits than its factorization.

1222131120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46121 (or 46110 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1222131120444 its reverse (4440211312221), we get a palindrome (5662342432665).

The spelling of 1222131120444 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, one hundred twenty thousand, four hundred forty-four".