222121110110022 has 96 divisors (see below), whose sum is σ = 494430914191968. Its totient is φ = 72048328685568.

The previous prime is 222121110109991. The next prime is 222121110110057. The reversal of 222121110110022 is 220011011121222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222121110109977 and 222121110110004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25558018 + ... + 33127850.

It is an arithmetic number, because the mean of its divisors is an integer number (5150322022833).

Almost surely, 2^{222121110110022} is an apocalyptic number.

222121110110022 is an abundant number, since it is smaller than the sum of its proper divisors (272309804081946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222121110110022 is a wasteful number, since it uses less digits than its factorization.

222121110110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570214 (or 7570211 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222121110110022 its reverse (220011011121222), we get a palindrome (442132121231244).

The spelling of 222121110110022 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, one hundred ten thousand, twenty-two".