12202261212 has 24 divisors (see below), whose sum is σ = 29453734800. Its totient is φ = 3927164416.

The previous prime is 12202261189. The next prime is 12202261229. The reversal of 12202261212 is 21216220221.

It is a congruent 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, 17531637 + ... + 17532332.

It is an arithmetic number, because the mean of its divisors is an integer number (1227238950).

Almost surely, 2^12202261212 is an apocalyptic number.

12202261212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12202261212 is an abundant number, since it is smaller than the sum of its proper divisors (17251473588).

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

12202261212 is a wasteful number, since it uses less digits than its factorization.

12202261212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35064005 (or 35064003 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12202261212 its reverse (21216220221), we get a palindrome (33418481433).

The spelling of 12202261212 in words is "twelve billion, two hundred two million, two hundred sixty-one thousand, two hundred twelve".