212020020001220 has 12 divisors (see below), whose sum is σ = 445242042002604. Its totient is φ = 84808008000480.

The previous prime is 212020020001201. The next prime is 212020020001247. The reversal of 212020020001220 is 22100020020212.

It can be written as a sum of positive squares in 2 ways, for example, as 41787252061636 + 170232767939584 = 6464306^2 + 13047328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212020020001195 and 212020020001204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5300500500011 + ... + 5300500500050.

It is an arithmetic number, because the mean of its divisors is an integer number (37103503500217).

Almost surely, 2^{212020020001220} is an apocalyptic number.

212020020001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020020001220 is an abundant number, since it is smaller than the sum of its proper divisors (233222022001384).

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

212020020001220 is a wasteful number, since it uses less digits than its factorization.

212020020001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601001000070 (or 10601001000068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212020020001220 its reverse (22100020020212), we get a palindrome (234120040021432).

The spelling of 212020020001220 in words is "two hundred twelve trillion, twenty billion, twenty million, one thousand, two hundred twenty".