1022020112 has 10 divisors (see below), whose sum is σ = 1980163998. Its totient is φ = 511010048.

The previous prime is 1022020099. The next prime is 1022020151. The reversal of 1022020112 is 2110202201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 910590976 + 111429136 = 30176^2 + 10556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022020093 and 1022020102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31938113 + ... + 31938144.

Almost surely, 2^1022020112 is an apocalyptic number.

It is an amenable number.

1022020112 is a deficient number, since it is larger than the sum of its proper divisors (958143886).

1022020112 is an equidigital number, since it uses as much as digits as its factorization.

1022020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63876265 (or 63876259 counting only the distinct ones).

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

The square root of 1022020112 is about 31969.0492820791. The cubic root of 1022020112 is about 1007.2868107517.

Adding to 1022020112 its reverse (2110202201), we get a palindrome (3132222313).

The spelling of 1022020112 in words is "one billion, twenty-two million, twenty thousand, one hundred twelve".