1022012112 has 80 divisors (see below), whose sum is σ = 2893243392. Its totient is φ = 308300160.

The previous prime is 1022012059. The next prime is 1022012129. The reversal of 1022012112 is 2112102201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115593 + ... + 124119.

Almost surely, 2^1022012112 is an apocalyptic number.

1022012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446621696).

1022012112 is an abundant number, since it is smaller than the sum of its proper divisors (1871231280).

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

1022012112 is a wasteful number, since it uses less digits than its factorization.

1022012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8776 (or 8770 counting only the distinct ones).

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

The square root of 1022012112 is about 31968.9241608159. The cubic root of 1022012112 is about 1007.2841825204.

Adding to 1022012112 its reverse (2112102201), we get a palindrome (3134114313).

It can be divided in two parts, 102201 and 2112, that multiplied together give a palindrome (215848512).

The spelling of 1022012112 in words is "one billion, twenty-two million, twelve thousand, one hundred twelve".