210111021210000 has 400 divisors, whose sum is σ = 682694915246784. Its totient is φ = 55664050176000.

The previous prime is 210111021209987. The next prime is 210111021210017. The reversal of 210111021210000 is 12120111012.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 15339923152 + ... + 15339936848.

Almost surely, 2^{210111021210000} is an apocalyptic number.

210111021210000 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 210111021210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341347457623392).

210111021210000 is an abundant number, since it is smaller than the sum of its proper divisors (472583894036784).

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

210111021210000 is a wasteful number, since it uses less digits than its factorization.

210111021210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028 (or 17007 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210111021210000 its reverse (12120111012), we get a palindrome (210123141321012).

The spelling of 210111021210000 in words is "two hundred ten trillion, one hundred eleven billion, twenty-one million, two hundred ten thousand".