10102211111 has 4 divisors (see below), whose sum is σ = 10146325800. Its totient is φ = 10058096424.

The previous prime is 10102211107. The next prime is 10102211117. The reversal of 10102211111 is 11111220101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11111220101 = 1097 ⋅10128733.

It is a cyclic number.

It is not a de Polignac number, because 10102211111 - 2² = 10102211107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102211092 and 10102211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102211117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22057001 + ... + 22057458.

It is an arithmetic number, because the mean of its divisors is an integer number (2536581450).

Almost surely, 2^10102211111 is an apocalyptic number.

10102211111 is a deficient number, since it is larger than the sum of its proper divisors (44114689).

10102211111 is an equidigital number, since it uses as much as digits as its factorization.

10102211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44114688.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10102211111 its reverse (11111220101), we get a palindrome (21213431212).

The spelling of 10102211111 in words is "ten billion, one hundred two million, two hundred eleven thousand, one hundred eleven".