201011111012010 has 128 divisors (see below), whose sum is σ = 526656965345280. Its totient is φ = 48802805565696.

The previous prime is 201011111011967. The next prime is 201011111012029. The reversal of 201011111012010 is 10210111110102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26419839 + ... + 33166701.

It is an arithmetic number, because the mean of its divisors is an integer number (4114507541760).

Almost surely, 2^{201011111012010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201011111012010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263328482672640).

201011111012010 is an abundant number, since it is smaller than the sum of its proper divisors (325645854333270).

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

201011111012010 is a wasteful number, since it uses less digits than its factorization.

201011111012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747932.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201011111012010 its reverse (10210111110102), we get a palindrome (211221222122112).

The spelling of 201011111012010 in words is "two hundred one trillion, eleven billion, one hundred eleven million, twelve thousand, ten".