215424122100 has 288 divisors, whose sum is σ = 688710919680. Its totient is φ = 51554880000.

The previous prime is 215424122051. The next prime is 215424122107. The reversal of 215424122100 is 1221424512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215424122107) 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, 147651171 + ... + 147652629.

It is an arithmetic number, because the mean of its divisors is an integer number (2391357360).

Almost surely, 2^215424122100 is an apocalyptic number.

215424122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215424122100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344355459840).

215424122100 is an abundant number, since it is smaller than the sum of its proper divisors (473286797580).

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

215424122100 is a wasteful number, since it uses less digits than its factorization.

215424122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 215424122100 its reverse (1221424512), we get a palindrome (216645546612).

It can be divided in two parts, 21542412 and 2100, that added together give a palindrome (21544512).

The spelling of 215424122100 in words is "two hundred fifteen billion, four hundred twenty-four million, one hundred twenty-two thousand, one hundred".