2011112021154 has 32 divisors (see below), whose sum is σ = 4036660208640. Its totient is φ = 667968388992.

The previous prime is 2011112021153. The next prime is 2011112021161. The reversal of 2011112021154 is 4511202111102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011112021154.

It is not an unprimeable number, because it can be changed into a prime (2011112021153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1684927 + ... + 2619389.

It is an arithmetic number, because the mean of its divisors is an integer number (126145631520).

Almost surely, 2^{2011112021154} is an apocalyptic number.

2011112021154 is an abundant number, since it is smaller than the sum of its proper divisors (2025548187486).

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

2011112021154 is a wasteful number, since it uses less digits than its factorization.

2011112021154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935754.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 2011112021154 its reverse (4511202111102), we get a palindrome (6522314132256).

The spelling of 2011112021154 in words is "two trillion, eleven billion, one hundred twelve million, twenty-one thousand, one hundred fifty-four".