1022203212 has 12 divisors (see below), whose sum is σ = 2385140856. Its totient is φ = 340734400.

The previous prime is 1022203177. The next prime is 1022203213. The reversal of 1022203212 is 2123022201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1022203191 and 1022203200.

It is not an unprimeable number, because it can be changed into a prime (1022203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42591789 + ... + 42591812.

It is an arithmetic number, because the mean of its divisors is an integer number (198761738).

Almost surely, 2^1022203212 is an apocalyptic number.

1022203212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022203212 is an abundant number, since it is smaller than the sum of its proper divisors (1362937644).

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

1022203212 is a wasteful number, since it uses less digits than its factorization.

1022203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85183608 (or 85183606 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1022203212 is about 31971.9128611348. The cubic root of 1022203212 is about 1007.3469606449.

Adding to 1022203212 its reverse (2123022201), we get a palindrome (3145225413).

The spelling of 1022203212 in words is "one billion, twenty-two million, two hundred three thousand, two hundred twelve".