1022222211222 has 32 divisors (see below), whose sum is σ = 2046641006592. Its totient is φ = 340374835584.

The previous prime is 1022222211191. The next prime is 1022222211223. The reversal of 1022222211222 is 2221122222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022222211223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22702143 + ... + 22747125.

It is an arithmetic number, because the mean of its divisors is an integer number (63957531456).

Almost surely, 2^{1022222211222} is an apocalyptic number.

1022222211222 is an abundant number, since it is smaller than the sum of its proper divisors (1024418795370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022222211222 is a wasteful number, since it uses less digits than its factorization.

1022222211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48972.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1022222211222 its reverse (2221122222201), we get a palindrome (3243344433423).

The spelling of 1022222211222 in words is "one trillion, twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty-two".