7221011124210 has 128 divisors (see below), whose sum is σ = 18742285384704. Its totient is φ = 1769994270720.

The previous prime is 7221011124169. The next prime is 7221011124247. The reversal of 7221011124210 is 124211101227.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96861750 + ... + 96936270.

It is an arithmetic number, because the mean of its divisors is an integer number (146424104568).

Almost surely, 2^{7221011124210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7221011124210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9371142692352).

7221011124210 is an abundant number, since it is smaller than the sum of its proper divisors (11521274260494).

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

7221011124210 is a wasteful number, since it uses less digits than its factorization.

7221011124210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75588.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 7221011124210 its reverse (124211101227), we get a palindrome (7345222225437).

The spelling of 7221011124210 in words is "seven trillion, two hundred twenty-one billion, eleven million, one hundred twenty-four thousand, two hundred ten".