2011022121011 has 8 divisors (see below), whose sum is σ = 2136584840544. Its totient is φ = 1886266879360.

The previous prime is 2011022120999. The next prime is 2011022121019. The reversal of 2011022121011 is 1101212201102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011022121011 - 2²² = 2011017926707 is a prime.

It is a super-2 number, since 2×2011022121011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011022121019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201864335 + ... + 201874296.

It is an arithmetic number, because the mean of its divisors is an integer number (267073105068).

Almost surely, 2^{2011022121011} is an apocalyptic number.

2011022121011 is a deficient number, since it is larger than the sum of its proper divisors (125562719533).

2011022121011 is a wasteful number, since it uses less digits than its factorization.

2011022121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403738941.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2011022121011 its reverse (1101212201102), we get a palindrome (3112234322113).

The spelling of 2011022121011 in words is "two trillion, eleven billion, twenty-two million, one hundred twenty-one thousand, eleven".