211020210012220 has 48 divisors (see below), whose sum is σ = 508238074810368. Its totient is φ = 72094133321280.

The previous prime is 211020210012217. The next prime is 211020210012233. The reversal of 211020210012220 is 22210012020112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211020210012194 and 211020210012203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663011996 + ... + 2663091235.

It is an arithmetic number, because the mean of its divisors is an integer number (10588293225216).

Almost surely, 2^{211020210012220} is an apocalyptic number.

211020210012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211020210012220 is an abundant number, since it is smaller than the sum of its proper divisors (297217864798148).

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

211020210012220 is a wasteful number, since it uses less digits than its factorization.

211020210012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326103530 (or 5326103528 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211020210012220 its reverse (22210012020112), we get a palindrome (233230222032332).

The spelling of 211020210012220 in words is "two hundred eleven trillion, twenty billion, two hundred ten million, twelve thousand, two hundred twenty".