111010012020001 has 16 divisors (see below), whose sum is σ = 118013087304000. Its totient is φ = 104123042568000.

The previous prime is 111010012019999. The next prime is 111010012020029. The reversal of 111010012020001 is 100020210010111.

It is a cyclic number.

It is not a de Polignac number, because 111010012020001 - 2¹ = 111010012019999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111010012020001.

It is not an unprimeable number, because it can be changed into a prime (111010012020031) 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, 65462346 + ... + 67136716.

It is an arithmetic number, because the mean of its divisors is an integer number (7375817956500).

Almost surely, 2^{111010012020001} is an apocalyptic number.

It is an amenable number.

111010012020001 is a deficient number, since it is larger than the sum of its proper divisors (7003075283999).

111010012020001 is a wasteful number, since it uses less digits than its factorization.

111010012020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709040.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111010012020001 its reverse (100020210010111), we get a palindrome (211030222030112).

The spelling of 111010012020001 in words is "one hundred eleven trillion, ten billion, twelve million, twenty thousand, one".