12211201982 has 32 divisors (see below), whose sum is σ = 21820205568. Its totient is φ = 5015916576.

The previous prime is 12211201973. The next prime is 12211201987. The reversal of 12211201982 is 28910211221.

It is a super-2 number, since 2×12211201982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211201987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141218 + ... + 210629.

It is an arithmetic number, because the mean of its divisors is an integer number (681881424).

Almost surely, 2^12211201982 is an apocalyptic number.

12211201982 is a deficient number, since it is larger than the sum of its proper divisors (9609003586).

12211201982 is a wasteful number, since it uses less digits than its factorization.

12211201982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351960.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 12211201982 in words is "twelve billion, two hundred eleven million, two hundred one thousand, nine hundred eighty-two".