111010021020101 has 16 divisors (see below), whose sum is σ = 126894328995840. Its totient is φ = 95132148064560.

The previous prime is 111010021020083. The next prime is 111010021020169. The reversal of 111010021020101 is 101020120010111.

It is a cyclic number.

It is not a de Polignac number, because 111010021020101 - 2²² = 111010016825797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010021020181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030957496 + ... + 1031065166.

It is an arithmetic number, because the mean of its divisors is an integer number (7930895562240).

Almost surely, 2^{111010021020101} is an apocalyptic number.

It is an amenable number.

111010021020101 is a deficient number, since it is larger than the sum of its proper divisors (15884307975739).

111010021020101 is a wasteful number, since it uses less digits than its factorization.

111010021020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136184.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111010021020101 its reverse (101020120010111), we get a palindrome (212030141030212).

The spelling of 111010021020101 in words is "one hundred eleven trillion, ten billion, twenty-one million, twenty thousand, one hundred one".