1201421204 has 24 divisors (see below), whose sum is σ = 2155765920. Its totient is φ = 585545184.

The previous prime is 1201421171. The next prime is 1201421209. The reversal of 1201421204 is 4021241021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201421209) 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, 80687 + ... + 94409.

It is an arithmetic number, because the mean of its divisors is an integer number (89823580).

Almost surely, 2^1201421204 is an apocalyptic number.

It is an amenable number.

1201421204 is a deficient number, since it is larger than the sum of its proper divisors (954344716).

1201421204 is a wasteful number, since it uses less digits than its factorization.

1201421204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14279 (or 14277 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1201421204 is about 34661.5233941037. The cubic root of 1201421204 is about 1063.0779188450.

Adding to 1201421204 its reverse (4021241021), we get a palindrome (5222662225).

The spelling of 1201421204 in words is "one billion, two hundred one million, four hundred twenty-one thousand, two hundred four".