111213021101 has 8 divisors (see below), whose sum is σ = 136877564544. Its totient is φ = 87992719920.

The previous prime is 111213021097. The next prime is 111213021209. The reversal of 111213021101 is 101120312111.

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

It is not a de Polignac number, because 111213021101 - 2² = 111213021097 is a prime.

It is a super-2 number, since 2×111213021101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213021401) 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, 611060465 + ... + 611060646.

It is an arithmetic number, because the mean of its divisors is an integer number (17109695568).

Almost surely, 2^111213021101 is an apocalyptic number.

It is an amenable number.

111213021101 is a deficient number, since it is larger than the sum of its proper divisors (25664543443).

111213021101 is a wasteful number, since it uses less digits than its factorization.

111213021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222121131.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111213021101 its reverse (101120312111), we get a palindrome (212333333212).

The spelling of 111213021101 in words is "one hundred eleven billion, two hundred thirteen million, twenty-one thousand, one hundred one".