2011121111202 has 64 divisors (see below), whose sum is σ = 4650403829760. Its totient is φ = 567916880256.

The previous prime is 2011121111171. The next prime is 2011121111333. The reversal of 2011121111202 is 2021111211102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9112603 + ... + 9330689.

It is an arithmetic number, because the mean of its divisors is an integer number (72662559840).

Almost surely, 2^{2011121111202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011121111202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2325201914880).

2011121111202 is an abundant number, since it is smaller than the sum of its proper divisors (2639282718558).

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

2011121111202 is a wasteful number, since it uses less digits than its factorization.

2011121111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220655.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2011121111202 its reverse (2021111211102), we get a palindrome (4032232322304).

The spelling of 2011121111202 in words is "two trillion, eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred two".