20122112000091 has 16 divisors (see below), whose sum is σ = 26841973455360. Its totient is φ = 13408496407200.

The previous prime is 20122112000083. The next prime is 20122112000129. The reversal of 20122112000091 is 19000021122102.

It is not a de Polignac number, because 20122112000091 - 2³ = 20122112000083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122112000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257346040 + ... + 257424218.

It is an arithmetic number, because the mean of its divisors is an integer number (1677623340960).

Almost surely, 2^{20122112000091} is an apocalyptic number.

20122112000091 is a deficient number, since it is larger than the sum of its proper divisors (6719861455269).

20122112000091 is a wasteful number, since it uses less digits than its factorization.

20122112000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117026.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 20122112000091 its reverse (19000021122102), we get a palindrome (39122133122193).

The spelling of 20122112000091 in words is "twenty trillion, one hundred twenty-two billion, one hundred twelve million, ninety-one", and thus it is an aban number.