21222033300120 has 64 divisors (see below), whose sum is σ = 63718586817120. Its totient is φ = 5654543376384.

The previous prime is 21222033300077. The next prime is 21222033300137. The reversal of 21222033300120 is 2100333022212.

It is a happy number.

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, 72752329 + ... + 73043448.

Almost surely, 2^{21222033300120} is an apocalyptic number.

21222033300120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21222033300120 is an abundant number, since it is smaller than the sum of its proper divisors (42496553517000).

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

21222033300120 is a wasteful number, since it uses less digits than its factorization.

21222033300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145797004 (or 145797000 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21222033300120 its reverse (2100333022212), we get a palindrome (23322366322332).

The spelling of 21222033300120 in words is "twenty-one trillion, two hundred twenty-two billion, thirty-three million, three hundred thousand, one hundred twenty".