222212122020000 has 720 divisors, whose sum is σ = 911383519318272. Its totient is φ = 50288428800000.

The previous prime is 222212122019963. The next prime is 222212122020013. The reversal of 222212122020000 is 20221212222.

222212122020000 is a `hidden beast` number, since 2 + 2 + 221 + 21 + 220 + 200 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 126386937 + ... + 128133063.

Almost surely, 2^{222212122020000} is an apocalyptic number.

222212122020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222212122020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455691759659136).

222212122020000 is an abundant number, since it is smaller than the sum of its proper divisors (689171397298272).

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

222212122020000 is a wasteful number, since it uses less digits than its factorization.

222212122020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746271 (or 1746245 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222212122020000 its reverse (20221212222), we get a palindrome (222232343232222).

The spelling of 222212122020000 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-two million, twenty thousand".