2220221212042 has 8 divisors (see below), whose sum is σ = 3330838198116. Its totient is φ = 1109941812672.

The previous prime is 2220221212003. The next prime is 2220221212043. The reversal of 2220221212042 is 2402121220222.

It can be written as a sum of positive squares in 2 ways, for example, as 1300423210321 + 919798001721 = 1140361^2 + 959061^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2220221212043) 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, 84380233 + ... + 84406540.

Almost surely, 2^{2220221212042} is an apocalyptic number.

2220221212042 is a deficient number, since it is larger than the sum of its proper divisors (1110616986074).

2220221212042 is a wasteful number, since it uses less digits than its factorization.

2220221212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168793352.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2220221212042 its reverse (2402121220222), we get a palindrome (4622342432264).

The spelling of 2220221212042 in words is "two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twelve thousand, forty-two".