111012220022021 has 8 divisors (see below), whose sum is σ = 115842062891520. Its totient is φ = 106182645869872.

The previous prime is 111012220021987. The next prime is 111012220022057. The reversal of 111012220022021 is 120220022210111.

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

It is a cyclic number.

It is not a de Polignac number, because 111012220022021 - 2³⁴ = 110995040152837 is a prime.

It is a super-3 number, since 3×111012220022021³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012220022621) 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, 66334901 + ... + 67987818.

It is an arithmetic number, because the mean of its divisors is an integer number (14480257861440).

Almost surely, 2^{111012220022021} is an apocalyptic number.

It is an amenable number.

111012220022021 is a deficient number, since it is larger than the sum of its proper divisors (4829842869499).

111012220022021 is a wasteful number, since it uses less digits than its factorization.

111012220022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134358675.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111012220022021 its reverse (120220022210111), we get a palindrome (231232242232132).

The spelling of 111012220022021 in words is "one hundred eleven trillion, twelve billion, two hundred twenty million, twenty-two thousand, twenty-one".