1201422805 has 8 divisors (see below), whose sum is σ = 1572771744. Its totient is φ = 873762000.

The previous prime is 1201422791. The next prime is 1201422809. The reversal of 1201422805 is 5082241021.

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

It is not a de Polignac number, because 1201422805 - 2²⁹ = 664551893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201422805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201422809) 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, 10921971 + ... + 10922080.

It is an arithmetic number, because the mean of its divisors is an integer number (196596468).

Almost surely, 2^1201422805 is an apocalyptic number.

It is an amenable number.

1201422805 is a deficient number, since it is larger than the sum of its proper divisors (371348939).

1201422805 is a wasteful number, since it uses less digits than its factorization.

1201422805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21844067.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1201422805 is about 34661.5464888686. The cubic root of 1201422805 is about 1063.0783910599.

Adding to 1201422805 its reverse (5082241021), we get a palindrome (6283663826).

The spelling of 1201422805 in words is "one billion, two hundred one million, four hundred twenty-two thousand, eight hundred five".