1222131342044 has 12 divisors (see below), whose sum is σ = 2196533358264. Its totient is φ = 594550382544.

The previous prime is 1222131342041. The next prime is 1222131342053. The reversal of 1222131342044 is 4402431312221.

It is a junction number, because it is equal to n+sod(n) for n = 1222131341998 and 1222131342016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222131342041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128821954 + ... + 4128822249.

It is an arithmetic number, because the mean of its divisors is an integer number (183044446522).

Almost surely, 2^{1222131342044} is an apocalyptic number.

It is an amenable number.

1222131342044 is a deficient number, since it is larger than the sum of its proper divisors (974402016220).

1222131342044 is a wasteful number, since it uses less digits than its factorization.

1222131342044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8257644244 (or 8257644242 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1222131342044 its reverse (4402431312221), we get a palindrome (5624562654265).

The spelling of 1222131342044 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, three hundred forty-two thousand, forty-four".