201000122010 has 192 divisors, whose sum is σ = 584460489600. Its totient is φ = 47702462976.

The previous prime is 201000122009. The next prime is 201000122021. The reversal of 201000122010 is 10221000102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201000121983 and 201000122001.

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, 1780057 + ... + 1889603.

It is an arithmetic number, because the mean of its divisors is an integer number (3044065050).

Almost surely, 2^201000122010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201000122010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292230244800).

201000122010 is an abundant number, since it is smaller than the sum of its proper divisors (383460367590).

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

201000122010 is a wasteful number, since it uses less digits than its factorization.

201000122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109645 (or 109642 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201000122010 its reverse (10221000102), we get a palindrome (211221122112).

The spelling of 201000122010 in words is "two hundred one billion, one hundred twenty-two thousand, ten".