1122001212220 has 96 divisors (see below), whose sum is σ = 2850915110400. Its totient is φ = 362332756224.

The previous prime is 1122001212161. The next prime is 1122001212257. The reversal of 1122001212220 is 222121002211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122001212194 and 1122001212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758910 + ... + 1679269.

It is an arithmetic number, because the mean of its divisors is an integer number (29697032400).

Almost surely, 2^{1122001212220} is an apocalyptic number.

1122001212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122001212220 is an abundant number, since it is smaller than the sum of its proper divisors (1728913898180).

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

1122001212220 is a wasteful number, since it uses less digits than its factorization.

1122001212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438387 (or 2438385 counting only the distinct ones).

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

Adding to 1122001212220 its reverse (222121002211), we get a palindrome (1344122214431).

The spelling of 1122001212220 in words is "one trillion, one hundred twenty-two billion, one million, two hundred twelve thousand, two hundred twenty".