222102001122021 has 48 divisors (see below), whose sum is σ = 339945656993280. Its totient is φ = 139251364462080.

The previous prime is 222102001121983. The next prime is 222102001122049. The reversal of 222102001122021 is 120221100201222.

It is a happy number.

222102001122021 is a `hidden beast` number, since 2 + 2 + 210 + 200 + 11 + 220 + 21 = 666.

It is not a de Polignac number, because 222102001122021 - 2⁷ = 222102001121893 is a prime.

It is a super-2 number, since 2×222102001122021² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222102001121985 and 222102001122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222102001122821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5972231295 + ... + 5972268483.

It is an arithmetic number, because the mean of its divisors is an integer number (7082201187360).

Almost surely, 2^{222102001122021} is an apocalyptic number.

It is an amenable number.

222102001122021 is a deficient number, since it is larger than the sum of its proper divisors (117843655871259).

222102001122021 is a wasteful number, since it uses less digits than its factorization.

222102001122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66066 (or 66063 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222102001122021 its reverse (120221100201222), we get a palindrome (342323101323243).

The spelling of 222102001122021 in words is "two hundred twenty-two trillion, one hundred two billion, one million, one hundred twenty-two thousand, twenty-one".