212220102132020 has 96 divisors (see below), whose sum is σ = 480252762823680. Its totient is φ = 78533268249600.

The previous prime is 212220102131951. The next prime is 212220102132023. The reversal of 212220102132020 is 20231201022212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212220102131983 and 212220102132001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220102132023) 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, 35071172 + ... + 40674651.

It is an arithmetic number, because the mean of its divisors is an integer number (5002632946080).

Almost surely, 2^{212220102132020} is an apocalyptic number.

212220102132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220102132020 is an abundant number, since it is smaller than the sum of its proper divisors (268032660691660).

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

212220102132020 is a wasteful number, since it uses less digits than its factorization.

212220102132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75746025 (or 75746023 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212220102132020 its reverse (20231201022212), we get a palindrome (232451303154232).

The spelling of 212220102132020 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred two million, one hundred thirty-two thousand, twenty".