1022211112 has 32 divisors (see below), whose sum is σ = 2130670080. Its totient is φ = 456569280.

The previous prime is 1022211109. The next prime is 1022211121. The reversal of 1022211112 is 2111122201.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1022211092 and 1022211101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155308 + ... + 161755.

It is an arithmetic number, because the mean of its divisors is an integer number (66583440).

Almost surely, 2^1022211112 is an apocalyptic number.

It is an amenable number.

1022211112 is an abundant number, since it is smaller than the sum of its proper divisors (1108458968).

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

1022211112 is a wasteful number, since it uses less digits than its factorization.

1022211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317113 (or 317109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1022211112 is about 31972.0364068353. The cubic root of 1022211112 is about 1007.3495556999.

Adding to 1022211112 its reverse (2111122201), we get a palindrome (3133333313).

The spelling of 1022211112 in words is "one billion, twenty-two million, two hundred eleven thousand, one hundred twelve".