212020301220 has 96 divisors (see below), whose sum is σ = 730654595328. Its totient is φ = 44733952512.

The previous prime is 212020301131. The next prime is 212020301221. The reversal of 212020301220 is 22103020212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212020301220.

It is not an unprimeable number, because it can be changed into a prime (212020301221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19410319 + ... + 19421238.

It is an arithmetic number, because the mean of its divisors is an integer number (7610985368).

Almost surely, 2^212020301220 is an apocalyptic number.

212020301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020301220 is an abundant number, since it is smaller than the sum of its proper divisors (518634294108).

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

212020301220 is a wasteful number, since it uses less digits than its factorization.

212020301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38831589 (or 38831587 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212020301220 its reverse (22103020212), we get a palindrome (234123321432).

The spelling of 212020301220 in words is "two hundred twelve billion, twenty million, three hundred one thousand, two hundred twenty".