10221220310 has 32 divisors (see below), whose sum is σ = 21049277760. Its totient is φ = 3500623872.

The previous prime is 10221220307. The next prime is 10221220343. The reversal of 10221220310 is 1302212201.

It is a happy number.

It is a super-2 number, since 2×10221220310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13559 + ... + 143618.

It is an arithmetic number, because the mean of its divisors is an integer number (657789930).

Almost surely, 2^10221220310 is an apocalyptic number.

10221220310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10221220310 is an abundant number, since it is smaller than the sum of its proper divisors (10828057450).

10221220310 is a wasteful number, since it uses less digits than its factorization.

10221220310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158120.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10221220310 its reverse (1302212201), we get a palindrome (11523432511).

The spelling of 10221220310 in words is "ten billion, two hundred twenty-one million, two hundred twenty thousand, three hundred ten".