222210121000 has 64 divisors (see below), whose sum is σ = 594253370880. Its totient is φ = 76186324800.

The previous prime is 222210120991. The next prime is 222210121027. The reversal of 222210121000 is 121012222.

It is a happy number.

222210121000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15865152 + ... + 15879151.

It is an arithmetic number, because the mean of its divisors is an integer number (9285208920).

Almost surely, 2^222210121000 is an apocalyptic number.

222210121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222210121000 is an abundant number, since it is smaller than the sum of its proper divisors (372043249880).

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

222210121000 is a wasteful number, since it uses less digits than its factorization.

222210121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31744331 (or 31744317 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222210121000 its reverse (121012222), we get a palindrome (222331133222).

The spelling of 222210121000 in words is "two hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand".