11211222210210 has 192 divisors, whose sum is σ = 32865093233280. Its totient is φ = 2717578512000.

The previous prime is 11211222210203. The next prime is 11211222210217. The reversal of 11211222210210 is 1201222211211.

11211222210210 is a `hidden beast` number, since 1 + 1 + 21 + 1 + 222 + 210 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (11211222210203) and next prime (11211222210217).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11211222210217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 588475185 + ... + 588494235.

It is an arithmetic number, because the mean of its divisors is an integer number (171172360590).

Almost surely, 2^{11211222210210} is an apocalyptic number.

11211222210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211222210210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16432546616640).

11211222210210 is an abundant number, since it is smaller than the sum of its proper divisors (21653871023070).

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

11211222210210 is a wasteful number, since it uses less digits than its factorization.

11211222210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37102 (or 37085 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11211222210210 its reverse (1201222211211), we get a palindrome (12412444421421).

It can be divided in two parts, 112112 and 22210210, that added together give a palindrome (22322322).

The spelling of 11211222210210 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, two hundred ten thousand, two hundred ten".