111222210012001 has 32 divisors (see below), whose sum is σ = 126221471913600. Its totient is φ = 97935292857600.

The previous prime is 111222210011989. The next prime is 111222210012059. The reversal of 111222210012001 is 100210012222111.

It is not a de Polignac number, because 111222210012001 - 2⁷ = 111222210011873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222210012071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254005 + ... + 14916733.

It is an arithmetic number, because the mean of its divisors is an integer number (3944420997300).

Almost surely, 2^{111222210012001} is an apocalyptic number.

111222210012001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111222210012001 is a deficient number, since it is larger than the sum of its proper divisors (14999261901599).

111222210012001 is a wasteful number, since it uses less digits than its factorization.

111222210012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14662942 (or 14662920 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111222210012001 its reverse (100210012222111), we get a palindrome (211432222234112).

The spelling of 111222210012001 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred ten million, twelve thousand, one".