1220111212022 has 32 divisors (see below), whose sum is σ = 1940553262080. Its totient is φ = 573361649280.

The previous prime is 1220111211989. The next prime is 1220111212051. The reversal of 1220111212022 is 2202121110221.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194065763 + ... + 194072049.

It is an arithmetic number, because the mean of its divisors is an integer number (60642289440).

Almost surely, 2^{1220111212022} is an apocalyptic number.

1220111212022 is a deficient number, since it is larger than the sum of its proper divisors (720442050058).

1220111212022 is a wasteful number, since it uses less digits than its factorization.

1220111212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13436.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220111212022 its reverse (2202121110221), we get a palindrome (3422232322243).

The spelling of 1220111212022 in words is "one trillion, two hundred twenty billion, one hundred eleven million, two hundred twelve thousand, twenty-two".