11212220002 has 4 divisors (see below), whose sum is σ = 16818330006. Its totient is φ = 5606110000.

The previous prime is 11212219999. The next prime is 11212220023. The reversal of 11212220002 is 20002221211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8621308201 + 2590911801 = 92851^2 + 50901^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803054999 + ... + 2803055002.

Almost surely, 2^11212220002 is an apocalyptic number.

11212220002 is a deficient number, since it is larger than the sum of its proper divisors (5606110004).

11212220002 is an equidigital number, since it uses as much as digits as its factorization.

11212220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606110003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 11212220002 its reverse (20002221211), we get a palindrome (31214441213).

The spelling of 11212220002 in words is "eleven billion, two hundred twelve million, two hundred twenty thousand, two".