1220222311230 has 64 divisors (see below), whose sum is σ = 3159178702848. Its totient is φ = 299850668160.

The previous prime is 1220222311223. The next prime is 1220222311261. The reversal of 1220222311230 is 321132220221.

It is a super-2 number, since 2×1220222311230² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220222311197 and 1220222311206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2436126 + ... + 2893985.

It is an arithmetic number, because the mean of its divisors is an integer number (49362167232).

Almost surely, 2^{1220222311230} is an apocalyptic number.

1220222311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220222311230 is an abundant number, since it is smaller than the sum of its proper divisors (1938956391618).

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

1220222311230 is a wasteful number, since it uses less digits than its factorization.

1220222311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330721.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220222311230 its reverse (321132220221), we get a palindrome (1541354531451).

The spelling of 1220222311230 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, three hundred eleven thousand, two hundred thirty".