12221011002 has 16 divisors (see below), whose sum is σ = 24444921312. Its totient is φ = 4073187120.

The previous prime is 12221011001. The next prime is 12221011013. The reversal of 12221011002 is 20011012221.

It is a super-2 number, since 2×12221011002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221011001) 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, 63949 + ... + 168912.

It is an arithmetic number, because the mean of its divisors is an integer number (1527807582).

Almost surely, 2^12221011002 is an apocalyptic number.

12221011002 is an abundant number, since it is smaller than the sum of its proper divisors (12223910310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221011002 is a wasteful number, since it uses less digits than its factorization.

12221011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241613.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12221011002 its reverse (20011012221), we get a palindrome (32232023223).

The spelling of 12221011002 in words is "twelve billion, two hundred twenty-one million, eleven thousand, two".