12210212211012 has 36 divisors (see below), whose sum is σ = 32489161148080. Its totient is φ = 3855856487472.

The previous prime is 12210212210951. The next prime is 12210212211073. The reversal of 12210212211012 is 21011221201221.

It is an interprime number because it is at equal distance from previous prime (12210212210951) and next prime (12210212211073).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12210212211012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8925593038 + ... + 8925594405.

Almost surely, 2^{12210212211012} is an apocalyptic number.

12210212211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210212211012 is an abundant number, since it is smaller than the sum of its proper divisors (20278948937068).

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

12210212211012 is a wasteful number, since it uses less digits than its factorization.

12210212211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17851187472 (or 17851187467 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12210212211012 its reverse (21011221201221), we get a palindrome (33221433412233).

The spelling of 12210212211012 in words is "twelve trillion, two hundred ten billion, two hundred twelve million, two hundred eleven thousand, twelve".