3501221010 has 192 divisors, whose sum is σ = 10448455680. Its totient is φ = 746444160.

The previous prime is 3501220993. The next prime is 3501221021. The reversal of 3501221010 is 101221053.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1870375 + ... + 1872245.

It is an arithmetic number, because the mean of its divisors is an integer number (54419040).

Almost surely, 2^3501221010 is an apocalyptic number.

3501221010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3501221010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5224227840).

3501221010 is an abundant number, since it is smaller than the sum of its proper divisors (6947234670).

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

3501221010 is a wasteful number, since it uses less digits than its factorization.

3501221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 3501221010 is about 59171.1163491107. The cubic root of 3501221010 is about 1518.4710228153.

Adding to 3501221010 its reverse (101221053), we get a palindrome (3602442063).

The spelling of 3501221010 in words is "three billion, five hundred one million, two hundred twenty-one thousand, ten".