1220221012022 has 16 divisors (see below), whose sum is σ = 1835673025200. Its totient is φ = 608330189088.

The previous prime is 1220221011949. The next prime is 1220221012097. The reversal of 1220221012022 is 2202101220221.

It is a happy number.

It is a congruent number.

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, 18503873 + ... + 18569699.

It is an arithmetic number, because the mean of its divisors is an integer number (114729564075).

Almost surely, 2^{1220221012022} is an apocalyptic number.

1220221012022 is a deficient number, since it is larger than the sum of its proper divisors (615452013178).

1220221012022 is a wasteful number, since it uses less digits than its factorization.

1220221012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92735.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220221012022 its reverse (2202101220221), we get a palindrome (3422322232243).

The spelling of 1220221012022 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, twelve thousand, twenty-two".