1220222212022 has 16 divisors (see below), whose sum is σ = 2020784213952. Its totient is φ = 547963971720.

The previous prime is 1220222212021. The next prime is 1220222212061. The reversal of 1220222212022 is 2202122220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220222211985 and 1220222212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222212021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334122548 + ... + 334126199.

It is an arithmetic number, because the mean of its divisors is an integer number (126299013372).

Almost surely, 2^{1220222212022} is an apocalyptic number.

1220222212022 is a deficient number, since it is larger than the sum of its proper divisors (800562001930).

1220222212022 is a wasteful number, since it uses less digits than its factorization.

1220222212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668248843.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220222212022 its reverse (2202122220221), we get a palindrome (3422344432243).

The spelling of 1220222212022 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, twenty-two".