220212102010021 has 32 divisors (see below), whose sum is σ = 266083789245696. Its totient is φ = 179775298560000.

The previous prime is 220212102009971. The next prime is 220212102010027. The reversal of 220212102010021 is 120010201212022.

It is a happy number.

It is not a de Polignac number, because 220212102010021 - 2³⁹ = 219662346196133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220212102009977 and 220212102010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212102010027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62115960 + ... + 65565361.

It is an arithmetic number, because the mean of its divisors is an integer number (8315118413928).

Almost surely, 2^{220212102010021} is an apocalyptic number.

It is an amenable number.

220212102010021 is a deficient number, since it is larger than the sum of its proper divisors (45871687235675).

220212102010021 is a wasteful number, since it uses less digits than its factorization.

220212102010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127681773.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220212102010021 its reverse (120010201212022), we get a palindrome (340222303222043).

The spelling of 220212102010021 in words is "two hundred twenty trillion, two hundred twelve billion, one hundred two million, ten thousand, twenty-one".