1220231122042 has 8 divisors (see below), whose sum is σ = 1830684838356. Its totient is φ = 610002842592.

The previous prime is 1220231122031. The next prime is 1220231122057. The reversal of 1220231122042 is 2402211320221.

It can be written as a sum of positive squares in 2 ways, for example, as 1158075147321 + 62155974721 = 1076139^2 + 249311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56345683 + ... + 56367334.

Almost surely, 2^{1220231122042} is an apocalyptic number.

1220231122042 is a deficient number, since it is larger than the sum of its proper divisors (610453716314).

1220231122042 is a wasteful number, since it uses less digits than its factorization.

1220231122042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112718432.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1220231122042 its reverse (2402211320221), we get a palindrome (3622442442263).

The spelling of 1220231122042 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, one hundred twenty-two thousand, forty-two".