2221211200120 has 64 divisors (see below), whose sum is σ = 5772773512800. Its totient is φ = 760200622080.

The previous prime is 2221211200097. The next prime is 2221211200133. The reversal of 2221211200120 is 210021121222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221211200094 and 2221211200103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148469205 + ... + 148484164.

Almost surely, 2^{2221211200120} is an apocalyptic number.

2221211200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221211200120 is an abundant number, since it is smaller than the sum of its proper divisors (3551562312680).

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

2221211200120 is a wasteful number, since it uses less digits than its factorization.

2221211200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296953408 (or 296953404 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221211200120 its reverse (210021121222), we get a palindrome (2431232321342).

It can be divided in two parts, 222121 and 1200120, that added together give a palindrome (1422241).

The spelling of 2221211200120 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thousand, one hundred twenty".