1220243022342 has 24 divisors (see below), whose sum is σ = 2735027465040. Its totient is φ = 392721892080.

The previous prime is 1220243022331. The next prime is 1220243022367. The reversal of 1220243022342 is 2432203420221.

1220243022342 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 2 + 430 + 223 + 4 + 2 = 666.

It is a super-2 number, since 2×1220243022342² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1168814634 + ... + 1168815677.

It is an arithmetic number, because the mean of its divisors is an integer number (113959477710).

Almost surely, 2^{1220243022342} is an apocalyptic number.

1220243022342 is an abundant number, since it is smaller than the sum of its proper divisors (1514784442698).

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

1220243022342 is a wasteful number, since it uses less digits than its factorization.

1220243022342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337630348 (or 2337630345 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 1220243022342 its reverse (2432203420221), we get a palindrome (3652446442563).

The spelling of 1220243022342 in words is "one trillion, two hundred twenty billion, two hundred forty-three million, twenty-two thousand, three hundred forty-two".