2211222122120 has 32 divisors (see below), whose sum is σ = 5427545209920. Its totient is φ = 804080771520.

The previous prime is 2211222122101. The next prime is 2211222122189. The reversal of 2211222122120 is 212212221122.

It is a super-3 number, since 3×2211222122120³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2211222122092 and 2211222122101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2512751972 + ... + 2512752851.

It is an arithmetic number, because the mean of its divisors is an integer number (169610787810).

Almost surely, 2^{2211222122120} is an apocalyptic number.

2211222122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211222122120 is an abundant number, since it is smaller than the sum of its proper divisors (3216323087800).

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

2211222122120 is a wasteful number, since it uses less digits than its factorization.

2211222122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025504845 (or 5025504841 counting only the distinct ones).

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

Adding to 2211222122120 its reverse (212212221122), we get a palindrome (2423434343242).

The spelling of 2211222122120 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty".