11212202321 has 8 divisors (see below), whose sum is σ = 11891312640. Its totient is φ = 10535266368.

The previous prime is 11212202317. The next prime is 11212202329. The reversal of 11212202321 is 12320221211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212202321 - 2² = 11212202317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212202321.

It is not an unprimeable number, because it can be changed into a prime (11212202329) 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, 532961 + ... + 553598.

It is an arithmetic number, because the mean of its divisors is an integer number (1486414080).

Almost surely, 2^11212202321 is an apocalyptic number.

It is an amenable number.

11212202321 is a deficient number, since it is larger than the sum of its proper divisors (679110319).

11212202321 is a wasteful number, since it uses less digits than its factorization.

11212202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087183.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11212202321 its reverse (12320221211), we get a palindrome (23532423532).

The spelling of 11212202321 in words is "eleven billion, two hundred twelve million, two hundred two thousand, three hundred twenty-one".