20111001122 has 16 divisors (see below), whose sum is σ = 31943693952. Its totient is φ = 9463202880.

The previous prime is 20111001121. The next prime is 20111001133. The reversal of 20111001122 is 22110011102.

It is a super-2 number, since 2×20111001122² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111001121) 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, 646547 + ... + 676937.

It is an arithmetic number, because the mean of its divisors is an integer number (1996480872).

Almost surely, 2^20111001122 is an apocalyptic number.

20111001122 is a deficient number, since it is larger than the sum of its proper divisors (11832692830).

20111001122 is a wasteful number, since it uses less digits than its factorization.

20111001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49873.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20111001122 its reverse (22110011102), we get a palindrome (42221012224).

The spelling of 20111001122 in words is "twenty billion, one hundred eleven million, one thousand, one hundred twenty-two".