1201101212111 has 16 divisors (see below), whose sum is σ = 1281706243200. Its totient is φ = 1122327988128.

The previous prime is 1201101212089. The next prime is 1201101212167. The reversal of 1201101212111 is 1112121011021.

It is a de Polignac number, because none of the positive numbers 2^k-1201101212111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201101212411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824405 + ... + 1755518.

It is an arithmetic number, because the mean of its divisors is an integer number (80106640200).

Almost surely, 2^{1201101212111} is an apocalyptic number.

1201101212111 is a deficient number, since it is larger than the sum of its proper divisors (80605031089).

1201101212111 is a wasteful number, since it uses less digits than its factorization.

1201101212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580278.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1201101212111 its reverse (1112121011021), we get a palindrome (2313222223132).

The spelling of 1201101212111 in words is "one trillion, two hundred one billion, one hundred one million, two hundred twelve thousand, one hundred eleven".