12021202105 has 8 divisors (see below), whose sum is σ = 15736846464. Its totient is φ = 8742692400.

The previous prime is 12021202099. The next prime is 12021202111. The reversal of 12021202105 is 50120212021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12021202099) and next prime (12021202111).

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

It is not a de Polignac number, because 12021202105 - 2⁷ = 12021201977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109283601 + ... + 109283710.

It is an arithmetic number, because the mean of its divisors is an integer number (1967105808).

Almost surely, 2^12021202105 is an apocalyptic number.

It is an amenable number.

12021202105 is a deficient number, since it is larger than the sum of its proper divisors (3715644359).

12021202105 is a wasteful number, since it uses less digits than its factorization.

12021202105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218567327.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 12021202105 its reverse (50120212021), we get a palindrome (62141414126).

The spelling of 12021202105 in words is "twelve billion, twenty-one million, two hundred two thousand, one hundred five".