10201221204 has 24 divisors (see below), whose sum is σ = 23871455328. Its totient is φ = 3390606240.

The previous prime is 10201221203. The next prime is 10201221223. The reversal of 10201221204 is 40212210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201221203) 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, 1220767 + ... + 1229094.

It is an arithmetic number, because the mean of its divisors is an integer number (994643972).

Almost surely, 2^10201221204 is an apocalyptic number.

It is an amenable number.

10201221204 is an abundant number, since it is smaller than the sum of its proper divisors (13670234124).

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

10201221204 is a wasteful number, since it uses less digits than its factorization.

10201221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450215 (or 2450213 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10201221204 its reverse (40212210201), we get a palindrome (50413431405).

The spelling of 10201221204 in words is "ten billion, two hundred one million, two hundred twenty-one thousand, two hundred four".