1122121002222 has 48 divisors (see below), whose sum is σ = 2656804655232. Its totient is φ = 339457353360.

The previous prime is 1122121002143. The next prime is 1122121002241. The reversal of 1122121002222 is 2222001212211.

It is a happy number.

1122121002222 is a `hidden beast` number, since 11 + 221 + 210 + 0 + 2 + 222 = 666.

It is a super-4 number, since 4×1122121002222⁴ (a number of 49 digits) contains 4444 as substring.

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 = 1122121002195 and 1122121002204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4711098 + ... + 4943549.

It is an arithmetic number, because the mean of its divisors is an integer number (55350096984).

Almost surely, 2^{1122121002222} is an apocalyptic number.

1122121002222 is an abundant number, since it is smaller than the sum of its proper divisors (1534683653010).

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

1122121002222 is a wasteful number, since it uses less digits than its factorization.

1122121002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655253 (or 9655250 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1122121002222 its reverse (2222001212211), we get a palindrome (3344122214433).

The spelling of 1122121002222 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, two thousand, two hundred twenty-two".