222121101121222 has 64 divisors (see below), whose sum is σ = 366408264499200. Its totient is φ = 100590214811040.

The previous prime is 222121101121211. The next prime is 222121101121223.

222121101121222 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222121101121193 and 222121101121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121101121223) 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, 4224494929 + ... + 4224547507.

It is an arithmetic number, because the mean of its divisors is an integer number (5725129132800).

Almost surely, 2^{222121101121222} is an apocalyptic number.

222121101121222 is a deficient number, since it is larger than the sum of its proper divisors (144287163377978).

222121101121222 is a wasteful number, since it uses less digits than its factorization.

222121101121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95921.

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 22212110 and 1121222, that added together give a palindrome (23333332).

The spelling of 222121101121222 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-two".