1022120112 has 60 divisors (see below), whose sum is σ = 2859237384. Its totient is φ = 314496000.

The previous prime is 1022120111. The next prime is 1022120117. The reversal of 1022120112 is 2110212201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1022120111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54889 + ... + 71112.

Almost surely, 2^1022120112 is an apocalyptic number.

1022120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022120112 is an abundant number, since it is smaller than the sum of its proper divisors (1837117272).

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

1022120112 is a wasteful number, since it uses less digits than its factorization.

1022120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126038 (or 126019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1022120112 is about 31970.6132565517. The cubic root of 1022120112 is about 1007.3196624848.

Adding to 1022120112 its reverse (2110212201), we get a palindrome (3132332313).

The spelling of 1022120112 in words is "one billion, twenty-two million, one hundred twenty thousand, one hundred twelve".