1000012203 has 8 divisors (see below), whose sum is σ = 1481499600. Its totient is φ = 666674784.

The previous prime is 1000012187. The next prime is 1000012217. The reversal of 1000012203 is 3022100001.

It is a happy number.

It is not a de Polignac number, because 1000012203 - 2⁴ = 1000012187 is a prime.

It is a super-2 number, since 2×1000012203² = 2000048812297826418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1000012253) 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, 18518718 + ... + 18518771.

It is an arithmetic number, because the mean of its divisors is an integer number (185187450).

Almost surely, 2^1000012203 is an apocalyptic number.

1000012203 is a deficient number, since it is larger than the sum of its proper divisors (481487397).

1000012203 is an equidigital number, since it uses as much as digits as its factorization.

1000012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037498 (or 37037492 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1000012203 is about 31622.9695474666. The cubic root of 1000012203 is about 1000.0040676501.

Adding to 1000012203 its reverse (3022100001), we get a palindrome (4022112204).

The spelling of 1000012203 in words is "one billion, twelve thousand, two hundred three".