211202202012220 has 48 divisors (see below), whose sum is σ = 444282485562720. Its totient is φ = 84336572088576.

The previous prime is 211202202012157. The next prime is 211202202012271. The reversal of 211202202012220 is 22210202202112.

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, 72477694 + ... + 75335386.

It is an arithmetic number, because the mean of its divisors is an integer number (9255885115890).

Almost surely, 2^{211202202012220} is an apocalyptic number.

211202202012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211202202012220 is an abundant number, since it is smaller than the sum of its proper divisors (233080283550500).

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

211202202012220 is a wasteful number, since it uses less digits than its factorization.

211202202012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864014 (or 2864012 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 211202202012220 its reverse (22210202202112), we get a palindrome (233412404214332).

The spelling of 211202202012220 in words is "two hundred eleven trillion, two hundred two billion, two hundred two million, twelve thousand, two hundred twenty".