222011202120122 has 4 divisors (see below), whose sum is σ = 333016803180186. Its totient is φ = 111005601060060.

The previous prime is 222011202120121. The next prime is 222011202120131. The reversal of 222011202120122 is 221021202110222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 187822612015921 + 34188590104201 = 13704839^2 + 5847101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222011202120094 and 222011202120103.

It is not an unprimeable number, because it can be changed into a prime (222011202120121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55502800530029 + ... + 55502800530032.

Almost surely, 2^{222011202120122} is an apocalyptic number.

222011202120122 is a deficient number, since it is larger than the sum of its proper divisors (111005601060064).

222011202120122 is a wasteful number, since it uses less digits than its factorization.

222011202120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111005601060063.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222011202120122 its reverse (221021202110222), we get a palindrome (443032404230344).

The spelling of 222011202120122 in words is "two hundred twenty-two trillion, eleven billion, two hundred two million, one hundred twenty thousand, one hundred twenty-two".