1012221203 has 8 divisors (see below), whose sum is σ = 1159048800. Its totient is φ = 865949760.

The previous prime is 1012221151. The next prime is 1012221211. The reversal of 1012221203 is 3021222101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012221203 - 2²⁶ = 945112339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012226203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135128 + ... + 142421.

It is an arithmetic number, because the mean of its divisors is an integer number (144881100).

Almost surely, 2^1012221203 is an apocalyptic number.

1012221203 is a deficient number, since it is larger than the sum of its proper divisors (146827597).

1012221203 is an equidigital number, since it uses as much as digits as its factorization.

1012221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278077.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1012221203 is about 31815.4239795732. The cubic root of 1012221203 is about 1004.0572507869.

Adding to 1012221203 its reverse (3021222101), we get a palindrome (4033443304).

The spelling of 1012221203 in words is "one billion, twelve million, two hundred twenty-one thousand, two hundred three".