111201001010121 has 32 divisors (see below), whose sum is σ = 166361668743168. Its totient is φ = 65477063931840.

The previous prime is 111201001010111. The next prime is 111201001010123. The reversal of 111201001010121 is 121010100102111.

It is not a de Polignac number, because 111201001010121 - 2¹¹ = 111201001008073 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111201001010097 and 111201001010106.

It is not an unprimeable number, because it can be changed into a prime (111201001010123) 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, 65837881 + ... + 67505766.

It is an arithmetic number, because the mean of its divisors is an integer number (5198802148224).

Almost surely, 2^{111201001010121} is an apocalyptic number.

111201001010121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111201001010121 is a deficient number, since it is larger than the sum of its proper divisors (55160667733047).

111201001010121 is a wasteful number, since it uses less digits than its factorization.

111201001010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133344381.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111201001010121 its reverse (121010100102111), we get a palindrome (232211101112232).

The spelling of 111201001010121 in words is "one hundred eleven trillion, two hundred one billion, one million, ten thousand, one hundred twenty-one".