1022202112 has 72 divisors (see below), whose sum is σ = 2173413816. Its totient is φ = 478150656.

The previous prime is 1022202067. The next prime is 1022202131. The reversal of 1022202112 is 2112022201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101929216 + 920272896 = 10096^2 + 30336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022202092 and 1022202101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839328 + ... + 840544.

It is an arithmetic number, because the mean of its divisors is an integer number (30186303).

Almost surely, 2^1022202112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086706908).

1022202112 is an abundant number, since it is smaller than the sum of its proper divisors (1151211704).

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

1022202112 is a wasteful number, since it uses less digits than its factorization.

1022202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022202112 is about 31971.8956585311. The cubic root of 1022202112 is about 1007.3465993071.

Adding to 1022202112 its reverse (2112022201), we get a palindrome (3134224313).

The spelling of 1022202112 in words is "one billion, twenty-two million, two hundred two thousand, one hundred twelve".