1200222221310 has 96 divisors (see below), whose sum is σ = 3574179340992. Its totient is φ = 273736143360.

The previous prime is 1200222221309. The next prime is 1200222221311. The reversal of 1200222221310 is 131222220021.

It is an interprime number because it is at equal distance from previous prime (1200222221309) and next prime (1200222221311).

It is a super-2 number, since 2×1200222221310² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200222221311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1796461 + ... + 2372280.

It is an arithmetic number, because the mean of its divisors is an integer number (37231034802).

Almost surely, 2^{1200222221310} is an apocalyptic number.

1200222221310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200222221310 is an abundant number, since it is smaller than the sum of its proper divisors (2373957119682).

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

1200222221310 is a wasteful number, since it uses less digits than its factorization.

1200222221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169218 (or 4169215 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1200222221310 its reverse (131222220021), we get a palindrome (1331444441331).

The spelling of 1200222221310 in words is "one trillion, two hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred ten".