222200233021 has 4 divisors (see below), whose sum is σ = 239292558652. Its totient is φ = 205107907392.

The previous prime is 222200232977. The next prime is 222200233061. The reversal of 222200233021 is 120332002222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120332002222 = 2 ⋅60166001111.

It can be written as a sum of positive squares in 2 ways, for example, as 111730416121 + 110469816900 = 334261^2 + 332370^2 .

It is a cyclic number.

It is not a de Polignac number, because 222200233021 - 2¹⁵ = 222200200253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222200233021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200233061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8546162796 + ... + 8546162821.

It is an arithmetic number, because the mean of its divisors is an integer number (59823139663).

Almost surely, 2^222200233021 is an apocalyptic number.

It is an amenable number.

222200233021 is a deficient number, since it is larger than the sum of its proper divisors (17092325631).

222200233021 is a wasteful number, since it uses less digits than its factorization.

222200233021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17092325630.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 222200233021 its reverse (120332002222), we get a palindrome (342532235243).

The spelling of 222200233021 in words is "two hundred twenty-two billion, two hundred million, two hundred thirty-three thousand, twenty-one".