1220444232212 has 6 divisors (see below), whose sum is σ = 2135777406378. Its totient is φ = 610222116104.

The previous prime is 1220444232187. The next prime is 1220444232253. The reversal of 1220444232212 is 2122324440221.

It can be written as a sum of positive squares in only one way, i.e., 866176430596 + 354267801616 = 930686^2 + 595204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152555529023 + ... + 152555529030.

It is an arithmetic number, because the mean of its divisors is an integer number (355962901063).

Almost surely, 2^{1220444232212} is an apocalyptic number.

It is an amenable number.

1220444232212 is a deficient number, since it is larger than the sum of its proper divisors (915333174166).

1220444232212 is a wasteful number, since it uses less digits than its factorization.

1220444232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305111058057 (or 305111058055 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1220444232212 its reverse (2122324440221), we get a palindrome (3342768672433).

The spelling of 1220444232212 in words is "one trillion, two hundred twenty billion, four hundred forty-four million, two hundred thirty-two thousand, two hundred twelve".