1212032401 has 8 divisors (see below), whose sum is σ = 1276335680. Its totient is φ = 1147780368.

The previous prime is 1212032399. The next prime is 1212032489. The reversal of 1212032401 is 1042302121.

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 1212032401 - 2¹ = 1212032399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212002401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41740 + ... + 64546.

It is an arithmetic number, because the mean of its divisors is an integer number (159541960).

Almost surely, 2^1212032401 is an apocalyptic number.

It is an amenable number.

1212032401 is a deficient number, since it is larger than the sum of its proper divisors (64303279).

1212032401 is a wasteful number, since it uses less digits than its factorization.

1212032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25623.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1212032401 is about 34814.2557151521. The cubic root of 1212032401 is about 1066.1985231607.

Adding to 1212032401 its reverse (1042302121), we get a palindrome (2254334522).

It can be divided in two parts, 12120 and 32401, that added together give a square (44521 = 211²).

The spelling of 1212032401 in words is "one billion, two hundred twelve million, thirty-two thousand, four hundred one".