211010212012220 has 48 divisors (see below), whose sum is σ = 443733683258880. Its totient is φ = 84287474542656.

The previous prime is 211010212012151. The next prime is 211010212012289. The reversal of 211010212012220 is 22210212010112.

It is an interprime number because it is at equal distance from previous prime (211010212012151) and next prime (211010212012289).

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, 574802849 + ... + 575169831.

It is an arithmetic number, because the mean of its divisors is an integer number (9244451734560).

Almost surely, 2^{211010212012220} is an apocalyptic number.

211010212012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010212012220 is an abundant number, since it is smaller than the sum of its proper divisors (232723471246660).

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

211010212012220 is a wasteful number, since it uses less digits than its factorization.

211010212012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406634 (or 406632 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211010212012220 its reverse (22210212010112), we get a palindrome (233220424022332).

The spelling of 211010212012220 in words is "two hundred eleven trillion, ten billion, two hundred twelve million, twelve thousand, two hundred twenty".