11111022101 has 8 divisors (see below), whose sum is σ = 11201163264. Its totient is φ = 11020922640.

The previous prime is 11111022089. The next prime is 11111022107. The reversal of 11111022101 is 10122011111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111022101 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 (11111022107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742271 + ... + 757091.

It is an arithmetic number, because the mean of its divisors is an integer number (1400145408).

Almost surely, 2^11111022101 is an apocalyptic number.

It is an amenable number.

11111022101 is a deficient number, since it is larger than the sum of its proper divisors (90141163).

11111022101 is a wasteful number, since it uses less digits than its factorization.

11111022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20851.

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

Adding to 11111022101 its reverse (10122011111), we get a palindrome (21233033212).

The spelling of 11111022101 in words is "eleven billion, one hundred eleven million, twenty-two thousand, one hundred one".