12402220210 has 8 divisors (see below), whose sum is σ = 22323996396. Its totient is φ = 4960888080.

The previous prime is 12402220157. The next prime is 12402220213. The reversal of 12402220210 is 1202220421.

It can be written as a sum of positive squares in 2 ways, for example, as 11406880809 + 995339401 = 106803^2 + 31549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12402220210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12402220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620111001 + ... + 620111020.

Almost surely, 2^12402220210 is an apocalyptic number.

12402220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12402220210 is a deficient number, since it is larger than the sum of its proper divisors (9921776186).

12402220210 is a wasteful number, since it uses less digits than its factorization.

12402220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240222028.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12402220210 its reverse (1202220421), we get a palindrome (13604440631).

The spelling of 12402220210 in words is "twelve billion, four hundred two million, two hundred twenty thousand, two hundred ten".