5221121700 has 72 divisors (see below), whose sum is σ = 15154981408. Its totient is φ = 1387825920.

The previous prime is 5221121687. The next prime is 5221121707. The reversal of 5221121700 is 71211225.

It is a super-2 number, since 2×5221121700² = 54520223612421780000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5221121707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66099 + ... + 121701.

Almost surely, 2^5221121700 is an apocalyptic number.

5221121700 is a gapful number since it is divisible by the number (50) 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 5221121700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7577490704).

5221121700 is an abundant number, since it is smaller than the sum of its proper divisors (9933859708).

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

5221121700 is a wasteful number, since it uses less digits than its factorization.

5221121700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55933 (or 55926 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 5221121700 is about 72257.3297320071. The cubic root of 5221121700 is about 1734.8207396177.

Adding to 5221121700 its reverse (71211225), we get a palindrome (5292332925).

The spelling of 5221121700 in words is "five billion, two hundred twenty-one million, one hundred twenty-one thousand, seven hundred".