111022020010001 has 4 divisors (see below), whose sum is σ = 111022041894372. Its totient is φ = 111021998125632.

The previous prime is 111022020009973. The next prime is 111022020010087. The reversal of 111022020010001 is 100010020220111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15846776601601 + 95175243408400 = 3980801^2 + 9755780^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022020010001 - 2¹⁸ = 111022019747857 is a prime.

It is a super-5 number, since 5×111022020010001⁵ (a number of 71 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022020010091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044341 + ... + 14937693.

It is an arithmetic number, because the mean of its divisors is an integer number (27755510473593).

Almost surely, 2^{111022020010001} is an apocalyptic number.

It is an amenable number.

111022020010001 is a deficient number, since it is larger than the sum of its proper divisors (21884371).

111022020010001 is an equidigital number, since it uses as much as digits as its factorization.

111022020010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21884370.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111022020010001 its reverse (100010020220111), we get a palindrome (211032040230112).

The spelling of 111022020010001 in words is "one hundred eleven trillion, twenty-two billion, twenty million, ten thousand, one".