1220213142242 has 16 divisors (see below), whose sum is σ = 1834757968032. Its totient is φ = 608628614400.

The previous prime is 1220213142193. The next prime is 1220213142293. The reversal of 1220213142242 is 2422413120221.

It is a happy number.

It is a super-2 number, since 2×1220213142242² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310093 + ... + 2038815.

It is an arithmetic number, because the mean of its divisors is an integer number (114672373002).

Almost surely, 2^{1220213142242} is an apocalyptic number.

1220213142242 is a deficient number, since it is larger than the sum of its proper divisors (614544825790).

1220213142242 is a wasteful number, since it uses less digits than its factorization.

1220213142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730753.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1220213142242 its reverse (2422413120221), we get a palindrome (3642626262463).

The spelling of 1220213142242 in words is "one trillion, two hundred twenty billion, two hundred thirteen million, one hundred forty-two thousand, two hundred forty-two".