201210220101 has 12 divisors (see below), whose sum is σ = 294886604096. Its totient is φ = 121945587720.

The previous prime is 201210219997. The next prime is 201210220171. The reversal of 201210220101 is 101022012102.

It is not a de Polignac number, because 201210220101 - 2¹⁷ = 201210089029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210220171) 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 11 ways as a sum of consecutive naturals, for example, 277148701 + ... + 277149426.

Almost surely, 2^201210220101 is an apocalyptic number.

It is an amenable number.

201210220101 is a deficient number, since it is larger than the sum of its proper divisors (93676383995).

201210220101 is a wasteful number, since it uses less digits than its factorization.

201210220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554298152 (or 554298141 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201210220101 its reverse (101022012102), we get a palindrome (302232232203).

It can be divided in two parts, 20 and 1210220101, that added together give a palindrome (1210220121).

The spelling of 201210220101 in words is "two hundred one billion, two hundred ten million, two hundred twenty thousand, one hundred one".