20111001121122 has 16 divisors (see below), whose sum is σ = 40281414365952. Its totient is φ = 6693765019760.

The previous prime is 20111001121103. The next prime is 20111001121129. The reversal of 20111001121122 is 22112110011102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20111001121129) 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, 2475500754 + ... + 2475508877.

It is an arithmetic number, because the mean of its divisors is an integer number (2517588397872).

Almost surely, 2^{20111001121122} is an apocalyptic number.

20111001121122 is an abundant number, since it is smaller than the sum of its proper divisors (20170413244830).

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

20111001121122 is a wasteful number, since it uses less digits than its factorization.

20111001121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951010313.

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

Adding to 20111001121122 its reverse (22112110011102), we get a palindrome (42223111132224).

The spelling of 20111001121122 in words is "twenty trillion, one hundred eleven billion, one million, one hundred twenty-one thousand, one hundred twenty-two".