20122111002111 has 8 divisors (see below), whose sum is σ = 26964302851200. Its totient is φ = 13347329910552.

The previous prime is 20122111002053. The next prime is 20122111002121. The reversal of 20122111002111 is 11120011122102.

It is a happy number.

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

It is not a de Polignac number, because 20122111002111 - 2⁷ = 20122111001983 is a prime.

It is a super-3 number, since 3×20122111002111³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122111002121) 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, 16852688685 + ... + 16852689878.

It is an arithmetic number, because the mean of its divisors is an integer number (3370537856400).

Almost surely, 2^{20122111002111} is an apocalyptic number.

20122111002111 is a deficient number, since it is larger than the sum of its proper divisors (6842191849089).

20122111002111 is a wasteful number, since it uses less digits than its factorization.

20122111002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33705378765.

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

Adding to 20122111002111 its reverse (11120011122102), we get a palindrome (31242122124213).

The spelling of 20122111002111 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, two thousand, one hundred eleven".