222003201021 has 32 divisors (see below), whose sum is σ = 347889945600. Its totient is φ = 123307536000.

The previous prime is 222003200999. The next prime is 222003201041. The reversal of 222003201021 is 120102300222.

It is a happy number.

It is not a de Polignac number, because 222003201021 - 2⁷ = 222003200893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222003201041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896355 + ... + 1116896.

It is an arithmetic number, because the mean of its divisors is an integer number (10871560800).

Almost surely, 2^222003201021 is an apocalyptic number.

222003201021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222003201021 is a deficient number, since it is larger than the sum of its proper divisors (125886744579).

222003201021 is a wasteful number, since it uses less digits than its factorization.

222003201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013409.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 222003201021 its reverse (120102300222), we get a palindrome (342105501243).

The spelling of 222003201021 in words is "two hundred twenty-two billion, three million, two hundred one thousand, twenty-one".