201021222010 has 32 divisors (see below), whose sum is σ = 419194167552. Its totient is φ = 67977429120.

The previous prime is 201021221959. The next prime is 201021222089. The reversal of 201021222010 is 10222120102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19664286 + ... + 19674505.

It is an arithmetic number, because the mean of its divisors is an integer number (13099817736).

Almost surely, 2^201021222010 is an apocalyptic number.

201021222010 is an abundant number, since it is smaller than the sum of its proper divisors (218172945542).

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

201021222010 is a wasteful number, since it uses less digits than its factorization.

201021222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39338878.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201021222010 its reverse (10222120102), we get a palindrome (211243342112).

The spelling of 201021222010 in words is "two hundred one billion, twenty-one million, two hundred twenty-two thousand, ten".