2011122121022 has 16 divisors (see below), whose sum is σ = 3478147994592. Its totient is φ = 854281962240.

The previous prime is 2011122120947. The next prime is 2011122121027. The reversal of 2011122121022 is 2201212211102.

It is a super-2 number, since 2×2011122121022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011122121027) 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, 635624879 + ... + 635628042.

It is an arithmetic number, because the mean of its divisors is an integer number (217384249662).

Almost surely, 2^{2011122121022} is an apocalyptic number.

2011122121022 is a deficient number, since it is larger than the sum of its proper divisors (1467025873570).

2011122121022 is a wasteful number, since it uses less digits than its factorization.

2011122121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271253043.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2011122121022 its reverse (2201212211102), we get a palindrome (4212334332124).

The spelling of 2011122121022 in words is "two trillion, eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".