222120001221122 has 4 divisors (see below), whose sum is σ = 333180001831686. Its totient is φ = 111060000610560.

The previous prime is 222120001221091. The next prime is 222120001221133. The reversal of 222120001221122 is 221122100021222.

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., 206119113208801 + 16000888012321 = 14356849^2 + 4000111^2 .

It is a super-2 number, since 2×222120001221122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222120001221094 and 222120001221103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55530000305279 + ... + 55530000305282.

Almost surely, 2^{222120001221122} is an apocalyptic number.

222120001221122 is a deficient number, since it is larger than the sum of its proper divisors (111060000610564).

222120001221122 is a wasteful number, since it uses less digits than its factorization.

222120001221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111060000610563.

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

Adding to 222120001221122 its reverse (221122100021222), we get a palindrome (443242101242344).

The spelling of 222120001221122 in words is "two hundred twenty-two trillion, one hundred twenty billion, one million, two hundred twenty-one thousand, one hundred twenty-two".