1220220012022 has 64 divisors (see below), whose sum is σ = 2139535171584. Its totient is φ = 515783856640.

The previous prime is 1220220012017. The next prime is 1220220012029. The reversal of 1220220012022 is 2202100220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220220011987 and 1220220012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220012029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15287088 + ... + 15366700.

It is an arithmetic number, because the mean of its divisors is an integer number (33430237056).

Almost surely, 2^{1220220012022} is an apocalyptic number.

1220220012022 is a deficient number, since it is larger than the sum of its proper divisors (919315159562).

1220220012022 is a wasteful number, since it uses less digits than its factorization.

1220220012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80133.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1220220012022 its reverse (2202100220221), we get a palindrome (3422320232243).

The spelling of 1220220012022 in words is "one trillion, two hundred twenty billion, two hundred twenty million, twelve thousand, twenty-two".