1220431140222 has 32 divisors (see below), whose sum is σ = 2790970947072. Its totient is φ = 348517854624.

The previous prime is 1220431140191. The next prime is 1220431140223. The reversal of 1220431140222 is 2220411340221.

It is a junction number, because it is equal to n+sod(n) for n = 1220431140192 and 1220431140201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220431140223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7281018 + ... + 7446749.

It is an arithmetic number, because the mean of its divisors is an integer number (87217842096).

Almost surely, 2^{1220431140222} is an apocalyptic number.

1220431140222 is an abundant number, since it is smaller than the sum of its proper divisors (1570539806850).

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

1220431140222 is a wasteful number, since it uses less digits than its factorization.

1220431140222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14729752.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1220431140222 its reverse (2220411340221), we get a palindrome (3440842480443).

The spelling of 1220431140222 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred forty thousand, two hundred twenty-two".