1101020211111 has 16 divisors (see below), whose sum is σ = 1508026291200. Its totient is φ = 714022301088.

The previous prime is 1101020211047. The next prime is 1101020211113. The reversal of 1101020211111 is 1111120201011.

It is not a de Polignac number, because 1101020211111 - 2⁶ = 1101020211047 is a prime.

It is a super-2 number, since 2×1101020211111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101020211113) 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, 540591 + ... + 1579328.

It is an arithmetic number, because the mean of its divisors is an integer number (94251643200).

Almost surely, 2^{1101020211111} is an apocalyptic number.

1101020211111 is a deficient number, since it is larger than the sum of its proper divisors (407006080089).

1101020211111 is a wasteful number, since it uses less digits than its factorization.

1101020211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124638.

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

Adding to 1101020211111 its reverse (1111120201011), we get a palindrome (2212140412122).

It can be divided in two parts, 1101020 and 211111, that added together give a palindrome (1312131).

The spelling of 1101020211111 in words is "one trillion, one hundred one billion, twenty million, two hundred eleven thousand, one hundred eleven".