1227231402 has 16 divisors (see below), whose sum is σ = 2455792992. Its totient is φ = 408855440.

The previous prime is 1227231391. The next prime is 1227231403. The reversal of 1227231402 is 2041327221.

It is not an unprimeable number, because it can be changed into a prime (1227231403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43224 + ... + 65747.

It is an arithmetic number, because the mean of its divisors is an integer number (153487062).

Almost surely, 2^1227231402 is an apocalyptic number.

1227231402 is an abundant number, since it is smaller than the sum of its proper divisors (1228561590).

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

1227231402 is a wasteful number, since it uses less digits than its factorization.

1227231402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110853.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1227231402 is about 35031.8626681483. The cubic root of 1227231402 is about 1070.6367660000.

Adding to 1227231402 its reverse (2041327221), we get a palindrome (3268558623).

The spelling of 1227231402 in words is "one billion, two hundred twenty-seven million, two hundred thirty-one thousand, four hundred two".