11212222101 has 8 divisors (see below), whose sum is σ = 15025516704. Its totient is φ = 7436871120.

The previous prime is 11212222097. The next prime is 11212222141. The reversal of 11212222101 is 10122221211.

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

It is not a de Polignac number, because 11212222101 - 2² = 11212222097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212222141) 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, 9485215 + ... + 9486396.

It is an arithmetic number, because the mean of its divisors is an integer number (1878189588).

Almost surely, 2^11212222101 is an apocalyptic number.

It is an amenable number.

11212222101 is a deficient number, since it is larger than the sum of its proper divisors (3813294603).

11212222101 is a wasteful number, since it uses less digits than its factorization.

11212222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18971811.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11212222101 its reverse (10122221211), we get a palindrome (21334443312).

It can be divided in two parts, 1121 and 2222101, that added together give a palindrome (2223222).

The spelling of 11212222101 in words is "eleven billion, two hundred twelve million, two hundred twenty-two thousand, one hundred one".