111201100001211 has 64 divisors (see below), whose sum is σ = 166471507017216. Its totient is φ = 65452218624000.

The previous prime is 111201100001207. The next prime is 111201100001249. The reversal of 111201100001211 is 112100001102111.

It is not a de Polignac number, because 111201100001211 - 2² = 111201100001207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111201100001011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 737787520 + ... + 737938226.

It is an arithmetic number, because the mean of its divisors is an integer number (2601117297144).

Almost surely, 2^{111201100001211} is an apocalyptic number.

111201100001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111201100001211 is a deficient number, since it is larger than the sum of its proper divisors (55270407016005).

111201100001211 is a wasteful number, since it uses less digits than its factorization.

111201100001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155052.

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

Adding to 111201100001211 its reverse (112100001102111), we get a palindrome (223301101103322).

The spelling of 111201100001211 in words is "one hundred eleven trillion, two hundred one billion, one hundred million, one thousand, two hundred eleven".