220212202000021 has 48 divisors (see below), whose sum is σ = 284051203970112. Its totient is φ = 168770779027200.

The previous prime is 220212201999887. The next prime is 220212202000027. The reversal of 220212202000021 is 120000202212022.

It is not a de Polignac number, because 220212202000021 - 2³⁵ = 220177842261653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220212201999959 and 220212202000004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212202000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 572461270 + ... + 572845816.

It is an arithmetic number, because the mean of its divisors is an integer number (5917733416044).

Almost surely, 2^{220212202000021} is an apocalyptic number.

It is an amenable number.

220212202000021 is a deficient number, since it is larger than the sum of its proper divisors (63839001970091).

220212202000021 is a wasteful number, since it uses less digits than its factorization.

220212202000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402050 (or 402043 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220212202000021 its reverse (120000202212022), we get a palindrome (340212404212043).

The spelling of 220212202000021 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred two million, twenty-one", and thus it is an aban number.