210011012220 has 48 divisors (see below), whose sum is σ = 588155974560. Its totient is φ = 55991018496.

The previous prime is 210011012209. The next prime is 210011012231. The reversal of 210011012220 is 22210110012.

It is an interprime number because it is at equal distance from previous prime (210011012209) and next prime (210011012231).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210011012196 and 210011012205.

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, 86337 + ... + 653816.

It is an arithmetic number, because the mean of its divisors is an integer number (12253249470).

Almost surely, 2^210011012220 is an apocalyptic number.

210011012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210011012220 is an abundant number, since it is smaller than the sum of its proper divisors (378144962340).

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

210011012220 is a wasteful number, since it uses less digits than its factorization.

210011012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744894 (or 744892 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210011012220 its reverse (22210110012), we get a palindrome (232221122232).

The spelling of 210011012220 in words is "two hundred ten billion, eleven million, twelve thousand, two hundred twenty".