222212021211000 has 384 divisors, whose sum is σ = 771590371743360. Its totient is φ = 57638988288000.

The previous prime is 222212021210987. The next prime is 222212021211007. The reversal of 222212021211000 is 112120212222.

It is a happy number.

222212021211000 is a `hidden beast` number, since 2 + 222 + 120 + 212 + 110 + 0 + 0 = 666.

222212021211000 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212021211007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1222352112 + ... + 1222533888.

It is an arithmetic number, because the mean of its divisors is an integer number (2009349926415).

Almost surely, 2^{222212021211000} is an apocalyptic number.

222212021211000 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 222212021211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385795185871680).

222212021211000 is an abundant number, since it is smaller than the sum of its proper divisors (549378350532360).

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

222212021211000 is a wasteful number, since it uses less digits than its factorization.

222212021211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185512 (or 185495 counting only the distinct ones).

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

Adding to 222212021211000 its reverse (112120212222), we get a palindrome (222324141423222).

The spelling of 222212021211000 in words is "two hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand".