1022221112122 has 16 divisors (see below), whose sum is σ = 1752432112512. Its totient is φ = 438081496560.

The previous prime is 1022221112119. The next prime is 1022221112123. The reversal of 1022221112122 is 2212111222201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022221112122.

It is not an unprimeable number, because it can be changed into a prime (1022221112123) 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, 619254 + ... + 1558177.

It is an arithmetic number, because the mean of its divisors is an integer number (109527007032).

Almost surely, 2^{1022221112122} is an apocalyptic number.

1022221112122 is a deficient number, since it is larger than the sum of its proper divisors (730211000390).

1022221112122 is a wasteful number, since it uses less digits than its factorization.

1022221112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210973.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1022221112122 its reverse (2212111222201), we get a palindrome (3234332334323).

The spelling of 1022221112122 in words is "one trillion, twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".