222121202222 has 32 divisors (see below), whose sum is σ = 348932593152. Its totient is φ = 105941513664.

The previous prime is 222121202213. The next prime is 222121202231. The reversal of 222121202222 is 222202121222.

It is an interprime number because it is at equal distance from previous prime (222121202213) and next prime (222121202231).

It is a super-3 number, since 3×222121202222³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222121202194 and 222121202203.

It is a congruent 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, 1828778 + ... + 1946450.

It is an arithmetic number, because the mean of its divisors is an integer number (10904143536).

Almost surely, 2^222121202222 is an apocalyptic number.

222121202222 is a deficient number, since it is larger than the sum of its proper divisors (126811390930).

222121202222 is a wasteful number, since it uses less digits than its factorization.

222121202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118232.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222121202222 its reverse (222202121222), we get a palindrome (444323323444).

The spelling of 222121202222 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty-two".