210222121000 has 64 divisors (see below), whose sum is σ = 492072122880. Its totient is φ = 84062804800.

The previous prime is 210222120973. The next prime is 210222121063. The reversal of 210222121000 is 121222012.

It is a happy 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, 3376149 + ... + 3437851.

It is an arithmetic number, because the mean of its divisors is an integer number (7688626920).

Almost surely, 2^210222121000 is an apocalyptic number.

210222121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210222121000 is an abundant number, since it is smaller than the sum of its proper divisors (281850001880).

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

210222121000 is a wasteful number, since it uses less digits than its factorization.

210222121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65131 (or 65117 counting only the distinct ones).

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

Adding to 210222121000 its reverse (121222012), we get a palindrome (210343343012).

The spelling of 210222121000 in words is "two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand".