1221112200310 has 16 divisors (see below), whose sum is σ = 2327296193856. Its totient is φ = 459712828288.

The previous prime is 1221112200229. The next prime is 1221112200311. The reversal of 1221112200310 is 130022111221.

It is a super-2 number, since 2×1221112200310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221112200311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591506302 + ... + 3591506641.

It is an arithmetic number, because the mean of its divisors is an integer number (145456012116).

Almost surely, 2^{1221112200310} is an apocalyptic number.

1221112200310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221112200310 is a deficient number, since it is larger than the sum of its proper divisors (1106183993546).

1221112200310 is a wasteful number, since it uses less digits than its factorization.

1221112200310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7183012967.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1221112200310 its reverse (130022111221), we get a palindrome (1351134311531).

The spelling of 1221112200310 in words is "one trillion, two hundred twenty-one billion, one hundred twelve million, two hundred thousand, three hundred ten".