12212202222020 has 24 divisors (see below), whose sum is σ = 25646141493504. Its totient is φ = 4884782445536.

The previous prime is 12212202222007. The next prime is 12212202222037. The reversal of 12212202222020 is 2022220221221.

It is a super-2 number, since 2×12212202222020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12212202221983 and 12212202222001.

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, 5131334 + ... + 7124253.

It is an arithmetic number, because the mean of its divisors is an integer number (1068589228896).

Almost surely, 2^{12212202222020} is an apocalyptic number.

12212202222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212202222020 is an abundant number, since it is smaller than the sum of its proper divisors (13433939271484).

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

12212202222020 is a wasteful number, since it uses less digits than its factorization.

12212202222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12305419 (or 12305417 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12212202222020 its reverse (2022220221221), we get a palindrome (14234422443241).

The spelling of 12212202222020 in words is "twelve trillion, two hundred twelve billion, two hundred two million, two hundred twenty-two thousand, twenty".