210020212101 has 8 divisors (see below), whose sum is σ = 320030799424. Its totient is φ = 120011549760.

The previous prime is 210020212037. The next prime is 210020212123. The reversal of 210020212101 is 101212020012.

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

It is not a de Polignac number, because 210020212101 - 2⁶ = 210020212037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020213101) 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, 5000481220 + ... + 5000481261.

It is an arithmetic number, because the mean of its divisors is an integer number (40003849928).

Almost surely, 2^210020212101 is an apocalyptic number.

210020212101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210020212101 is a deficient number, since it is larger than the sum of its proper divisors (110010587323).

210020212101 is a wasteful number, since it uses less digits than its factorization.

210020212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000962491.

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

Adding to 210020212101 its reverse (101212020012), we get a palindrome (311232232113).

The spelling of 210020212101 in words is "two hundred ten billion, twenty million, two hundred twelve thousand, one hundred one".