20112111020101 has 8 divisors (see below), whose sum is σ = 20194933500000. Its totient is φ = 20029309926000.

The previous prime is 20112111019991. The next prime is 20112111020129. The reversal of 20112111020101 is 10102011121102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112111020101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112111020161) 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, 3460326 + ... + 7224823.

It is an arithmetic number, because the mean of its divisors is an integer number (2524366687500).

Almost surely, 2^{20112111020101} is an apocalyptic number.

It is an amenable number.

20112111020101 is a deficient number, since it is larger than the sum of its proper divisors (82822479899).

20112111020101 is a wasteful number, since it uses less digits than its factorization.

20112111020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692899.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20112111020101 its reverse (10102011121102), we get a palindrome (30214122141203).

The spelling of 20112111020101 in words is "twenty trillion, one hundred twelve billion, one hundred eleven million, twenty thousand, one hundred one".