1220022210112 has 14 divisors (see below), whose sum is σ = 2420981573318. Its totient is φ = 610011105024.

The previous prime is 1220022210089. The next prime is 1220022210119. The reversal of 1220022210112 is 2110122200221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1157294002176 + 62728207936 = 1075776^2 + 250456^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1220022210119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9531423453 + ... + 9531423580.

It is an arithmetic number, because the mean of its divisors is an integer number (172927255237).

Almost surely, 2^{1220022210112} is an apocalyptic number.

It is an amenable number.

1220022210112 is a deficient number, since it is larger than the sum of its proper divisors (1200959363206).

1220022210112 is an equidigital number, since it uses as much as digits as its factorization.

1220022210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19062847045 (or 19062847035 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220022210112 its reverse (2110122200221), we get a palindrome (3330144410333).

The spelling of 1220022210112 in words is "one trillion, two hundred twenty billion, twenty-two million, two hundred ten thousand, one hundred twelve".