20012022212120 has 32 divisors (see below), whose sum is σ = 45029135254320. Its totient is φ = 8004438168960.

The previous prime is 20012022212081. The next prime is 20012022212123. The reversal of 20012022212120 is 2121222021002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012022212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709546 + ... + 12438585.

Almost surely, 2^{20012022212120} is an apocalyptic number.

20012022212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012022212120 is an abundant number, since it is smaller than the sum of its proper divisors (25017113042200).

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

20012022212120 is a wasteful number, since it uses less digits than its factorization.

20012022212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23169755 (or 23169751 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20012022212120 its reverse (2121222021002), we get a palindrome (22133244233122).

The spelling of 20012022212120 in words is "twenty trillion, twelve billion, twenty-two million, two hundred twelve thousand, one hundred twenty".