1012203228 has 48 divisors (see below), whose sum is σ = 2531128320. Its totient is φ = 314005824.

The previous prime is 1012203107. The next prime is 1012203229. The reversal of 1012203228 is 8223022101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012203229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39348 + ... + 59771.

It is an arithmetic number, because the mean of its divisors is an integer number (52731840).

Almost surely, 2^1012203228 is an apocalyptic number.

It is an amenable number.

1012203228 is an abundant number, since it is smaller than the sum of its proper divisors (1518925092).

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

1012203228 is a wasteful number, since it uses less digits than its factorization.

1012203228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99186 (or 99184 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1012203228 is about 31815.1414895487. The cubic root of 1012203228 is about 1004.0513074101.

Adding to 1012203228 its reverse (8223022101), we get a palindrome (9235225329).

The spelling of 1012203228 in words is "one billion, twelve million, two hundred three thousand, two hundred twenty-eight".