12212020202 has 4 divisors (see below), whose sum is σ = 18318030306. Its totient is φ = 6106010100.

The previous prime is 12212020181. The next prime is 12212020211. The reversal of 12212020202 is 20202021221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20202021221 = 43 ⋅469814447.

It can be written as a sum of positive squares in only one way, i.e., 8753286481 + 3458733721 = 93559^2 + 58811^2 .

It is a super-2 number, since 2×12212020202² (a number of 21 digits) contains 22 as substring.

12212020202 is a modest number, since divided by 20202 gives 12212 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053005049 + ... + 3053005052.

Almost surely, 2^12212020202 is an apocalyptic number.

12212020202 is a deficient number, since it is larger than the sum of its proper divisors (6106010104).

12212020202 is an equidigital number, since it uses as much as digits as its factorization.

12212020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106010103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12212020202 its reverse (20202021221), we get a palindrome (32414041423).

It can be divided in two parts, 1221 and 2020202, that multiplied together give a palindrome (2466666642).

The spelling of 12212020202 in words is "twelve billion, two hundred twelve million, twenty thousand, two hundred two".