1220043002442 has 64 divisors (see below), whose sum is σ = 2674826219520. Its totient is φ = 367917580800.

The previous prime is 1220043002401. The next prime is 1220043002491. The reversal of 1220043002442 is 2442003400221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44743809 + ... + 44771067.

It is an arithmetic number, because the mean of its divisors is an integer number (41794159680).

Almost surely, 2^{1220043002442} is an apocalyptic number.

1220043002442 is an abundant number, since it is smaller than the sum of its proper divisors (1454783217078).

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

1220043002442 is a wasteful number, since it uses less digits than its factorization.

1220043002442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30539.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 1220043002442 its reverse (2442003400221), we get a palindrome (3662046402663).

The spelling of 1220043002442 in words is "one trillion, two hundred twenty billion, forty-three million, two thousand, four hundred forty-two".