1011022212222 has 48 divisors (see below), whose sum is σ = 2389801310208. Its totient is φ = 306355951440.

The previous prime is 1011022212149. The next prime is 1011022212251. The reversal of 1011022212222 is 2222122201101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1011022212195 and 1011022212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4557123 + ... + 4773825.

It is an arithmetic number, because the mean of its divisors is an integer number (49787527296).

Almost surely, 2^{1011022212222} is an apocalyptic number.

1011022212222 is an abundant number, since it is smaller than the sum of its proper divisors (1378779097986).

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

1011022212222 is a wasteful number, since it uses less digits than its factorization.

1011022212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240285 (or 240282 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1011022212222 its reverse (2222122201101), we get a palindrome (3233144413323).

The spelling of 1011022212222 in words is "one trillion, eleven billion, twenty-two million, two hundred twelve thousand, two hundred twenty-two".