222021220220122 has 16 divisors (see below), whose sum is σ = 334833811926120. Its totient is φ = 110411566431232.

The previous prime is 222021220220117. The next prime is 222021220220123. The reversal of 222021220220122 is 221022022120222.

It can be written as a sum of positive squares in 4 ways, for example, as 205031498604241 + 16989721615881 = 14318921^2 + 4121859^2 .

It is a super-2 number, since 2×222021220220122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222021220220093 and 222021220220102.

It is not an unprimeable number, because it can be changed into a prime (222021220220123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403938283 + ... + 404487550.

Almost surely, 2^{222021220220122} is an apocalyptic number.

222021220220122 is a deficient number, since it is larger than the sum of its proper divisors (112812591705998).

222021220220122 is a wasteful number, since it uses less digits than its factorization.

222021220220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808426577.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222021220220122 its reverse (221022022120222), we get a palindrome (443043242340344).

The spelling of 222021220220122 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty million, two hundred twenty thousand, one hundred twenty-two".