1020220112 has 20 divisors (see below), whose sum is σ = 1977941856. Its totient is φ = 509783520.

The previous prime is 1020220111. The next prime is 1020220127. The reversal of 1020220112 is 2110220201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020220093 and 1020220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6437 + ... + 45627.

Almost surely, 2^1020220112 is an apocalyptic number.

It is an amenable number.

1020220112 is a deficient number, since it is larger than the sum of its proper divisors (957721744).

1020220112 is a wasteful number, since it uses less digits than its factorization.

1020220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40826 (or 40820 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020220112 is about 31940.8846464840. The cubic root of 1020220112 is about 1006.6951127633.

Adding to 1020220112 its reverse (2110220201), we get a palindrome (3130440313).

The spelling of 1020220112 in words is "one billion, twenty million, two hundred twenty thousand, one hundred twelve".