220212121100000 has 72 divisors (see below), whose sum is σ = 541893583606536. Its totient is φ = 88084848400000.

The previous prime is 220212121099951. The next prime is 220212121100051. The reversal of 220212121100000 is 1121212022.

It is a super-2 number, since 2×220212121100000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100960606 + ... + 1101160605.

It is an arithmetic number, because the mean of its divisors is an integer number (7526299772313).

Almost surely, 2^{220212121100000} is an apocalyptic number.

220212121100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212121100000 is an abundant number, since it is smaller than the sum of its proper divisors (321681462506536).

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

220212121100000 is an frugal number, since it uses more digits than its factorization.

220212121100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202121246 (or 2202121218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220212121100000 its reverse (1121212022), we get a palindrome (220213242312022).

The spelling of 220212121100000 in words is "two hundred twenty trillion, two hundred twelve billion, one hundred twenty-one million, one hundred thousand".