22211201202120 has 320 divisors, whose sum is σ = 87303388993920. Its totient is φ = 4958779585536.

The previous prime is 22211201202119. The next prime is 22211201202133. The reversal of 22211201202120 is 2120210211222.

It is a happy number.

22211201202120 is a `hidden beast` number, since 2 + 221 + 120 + 1 + 202 + 120 = 666.

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 = 22211201202093 and 22211201202102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10412317 + ... + 12362796.

It is an arithmetic number, because the mean of its divisors is an integer number (272823090606).

Almost surely, 2^{22211201202120} is an apocalyptic number.

22211201202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211201202120 is an abundant number, since it is smaller than the sum of its proper divisors (65092187791800).

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

22211201202120 is a wasteful number, since it uses less digits than its factorization.

22211201202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775186 (or 22775173 counting only the distinct ones).

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

Adding to 22211201202120 its reverse (2120210211222), we get a palindrome (24331411413342).

The spelling of 22211201202120 in words is "twenty-two trillion, two hundred eleven billion, two hundred one million, two hundred two thousand, one hundred twenty".