222030120021 has 16 divisors (see below), whose sum is σ = 306914408640. Its totient is φ = 142669950080.

The previous prime is 222030119977. The next prime is 222030120031. The reversal of 222030120021 is 120021030222.

It is a happy number.

It is not a de Polignac number, because 222030120021 - 2²¹ = 222028022869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864026 + ... + 10884443.

It is an arithmetic number, because the mean of its divisors is an integer number (19182150540).

Almost surely, 2^222030120021 is an apocalyptic number.

It is an amenable number.

222030120021 is a deficient number, since it is larger than the sum of its proper divisors (84884288619).

222030120021 is a wasteful number, since it uses less digits than its factorization.

222030120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21748596.

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

Adding to 222030120021 its reverse (120021030222), we get a palindrome (342051150243).

The spelling of 222030120021 in words is "two hundred twenty-two billion, thirty million, one hundred twenty thousand, twenty-one".