222121111122122 has 16 divisors (see below), whose sum is σ = 352782891792072. Its totient is φ = 104526899174400.

The previous prime is 222121111122077. The next prime is 222121111122151. The reversal of 222121111122122 is 221221111121222.

It can be written as a sum of positive squares in 4 ways, for example, as 201998879942161 + 20122231179961 = 14212631^2 + 4485781^2 .

It is a super-2 number, since 2×222121111122122² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16026383 + ... + 26478050.

Almost surely, 2^{222121111122122} is an apocalyptic number.

222121111122122 is a deficient number, since it is larger than the sum of its proper divisors (130661780669950).

222121111122122 is a wasteful number, since it uses less digits than its factorization.

222121111122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42658153.

The product of its digits is 256, while the sum is 23.

Adding to 222121111122122 its reverse (221221111121222), we get a palindrome (443342222243344).

The spelling of 222121111122122 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twenty-two".