212210201020 has 24 divisors (see below), whose sum is σ = 455123156544. Its totient is φ = 83078035776.

The previous prime is 212210200987. The next prime is 212210201029. The reversal of 212210201020 is 20102012212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210201029) 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, 112876827 + ... + 112878706.

It is an arithmetic number, because the mean of its divisors is an integer number (18963464856).

Almost surely, 2^212210201020 is an apocalyptic number.

212210201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210201020 is an abundant number, since it is smaller than the sum of its proper divisors (242912955524).

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

212210201020 is a wasteful number, since it uses less digits than its factorization.

212210201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225755589 (or 225755587 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212210201020 its reverse (20102012212), we get a palindrome (232312213232).

The spelling of 212210201020 in words is "two hundred twelve billion, two hundred ten million, two hundred one thousand, twenty".