111021220011 has 8 divisors (see below), whose sum is σ = 159415085200. Its totient is φ = 68320750752.

The previous prime is 111021219989. The next prime is 111021220039. The reversal of 111021220011 is 110022120111.

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

It is not a de Polignac number, because 111021220011 - 2²³ = 111012831403 is a prime.

It is a super-2 number, since 2×111021220011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111021220411) 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, 1423348936 + ... + 1423349013.

It is an arithmetic number, because the mean of its divisors is an integer number (19926885650).

Almost surely, 2^111021220011 is an apocalyptic number.

111021220011 is a deficient number, since it is larger than the sum of its proper divisors (48393865189).

111021220011 is a wasteful number, since it uses less digits than its factorization.

111021220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846697965.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111021220011 its reverse (110022120111), we get a palindrome (221043340122).

The spelling of 111021220011 in words is "one hundred eleven billion, twenty-one million, two hundred twenty thousand, eleven".