12212022100020 has 48 divisors (see below), whose sum is σ = 34195141736448. Its totient is φ = 3256398288000.

The previous prime is 12212022099973. The next prime is 12212022100079. The reversal of 12212022100020 is 2000122021221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3002731 + ... + 5782770.

It is an arithmetic number, because the mean of its divisors is an integer number (712398786176).

Almost surely, 2^{12212022100020} is an apocalyptic number.

12212022100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212022100020 is an abundant number, since it is smaller than the sum of its proper divisors (21983119636428).

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

12212022100020 is a wasteful number, since it uses less digits than its factorization.

12212022100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8808680 (or 8808678 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12212022100020 its reverse (2000122021221), we get a palindrome (14212144121241).

The spelling of 12212022100020 in words is "twelve trillion, two hundred twelve billion, twenty-two million, one hundred thousand, twenty".