210220121022012 has 36 divisors (see below), whose sum is σ = 537360421721760. Its totient is φ = 69286032395712.

The previous prime is 210220121021987. The next prime is 210220121022013.

It is a happy number.

210220121022012 is a `hidden beast` number, since 2 + 1 + 0 + 220 + 1 + 210 + 220 + 12 = 666.

210220121022012 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220121022013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32805883348 + ... + 32805889755.

It is an arithmetic number, because the mean of its divisors is an integer number (14926678381160).

Almost surely, 2^{210220121022012} is an apocalyptic number.

It is an amenable number.

210220121022012 is an abundant number, since it is smaller than the sum of its proper divisors (327140300699748).

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

210220121022012 is a wasteful number, since it uses less digits than its factorization.

210220121022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65611773202 (or 65611773197 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 210220121022012 in words is "two hundred ten trillion, two hundred twenty billion, one hundred twenty-one million, twenty-two thousand, twelve".