201112122021210 has 192 divisors, whose sum is σ = 560811670129152. Its totient is φ = 49872618183168.

The previous prime is 201112122021203. The next prime is 201112122021221. The reversal of 201112122021210 is 12120221211102.

201112122021210 is a `hidden beast` number, since 20 + 111 + 212 + 202 + 121 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 96777307 + ... + 98833553.

It is an arithmetic number, because the mean of its divisors is an integer number (2920894115256).

Almost surely, 2^{201112122021210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201112122021210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280405835064576).

201112122021210 is an abundant number, since it is smaller than the sum of its proper divisors (359699548107942).

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

201112122021210 is a wasteful number, since it uses less digits than its factorization.

201112122021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057597 (or 2057594 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201112122021210 its reverse (12120221211102), we get a palindrome (213232343232312).

The spelling of 201112122021210 in words is "two hundred one trillion, one hundred twelve billion, one hundred twenty-two million, twenty-one thousand, two hundred ten".