1220022122122 has 16 divisors (see below), whose sum is σ = 1926376172640. Its totient is φ = 577897579728.

The previous prime is 1220022122117. The next prime is 1220022122129. The reversal of 1220022122122 is 2212212200221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1220022122122.

It is not an unprimeable number, because it can be changed into a prime (1220022122129) 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, 3583873 + ... + 3909499.

It is an arithmetic number, because the mean of its divisors is an integer number (120398510790).

Almost surely, 2^{1220022122122} is an apocalyptic number.

1220022122122 is a deficient number, since it is larger than the sum of its proper divisors (706354050518).

1220022122122 is a wasteful number, since it uses less digits than its factorization.

1220022122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424245.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1220022122122 its reverse (2212212200221), we get a palindrome (3432234322343).

The spelling of 1220022122122 in words is "one trillion, two hundred twenty billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".