20212212000021 has 8 divisors (see below), whose sum is σ = 26962529097024. Its totient is φ = 13468351451520.

The previous prime is 20212212000017. The next prime is 20212212000061. The reversal of 20212212000021 is 12000021221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20212212000021 - 2² = 20212212000017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212212000011) 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, 1614129820 + ... + 1614142341.

It is an arithmetic number, because the mean of its divisors is an integer number (3370316137128).

Almost surely, 2^{20212212000021} is an apocalyptic number.

It is an amenable number.

20212212000021 is a deficient number, since it is larger than the sum of its proper divisors (6750317097003).

20212212000021 is a wasteful number, since it uses less digits than its factorization.

20212212000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228274251.

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

Adding to 20212212000021 its reverse (12000021221202), we get a palindrome (32212233221223).

The spelling of 20212212000021 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, twenty-one", and thus it is an aban number.