12021222010 has 16 divisors (see below), whose sum is σ = 24729371136. Its totient is φ = 4121561808.

The previous prime is 12021221999. The next prime is 12021222023. The reversal of 12021222010 is 1022212021.

It is a happy number.

It is a super-2 number, since 2×12021222010² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85865802 + ... + 85865941.

It is an arithmetic number, because the mean of its divisors is an integer number (1545585696).

Almost surely, 2^12021222010 is an apocalyptic number.

12021222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021222010 is an abundant number, since it is smaller than the sum of its proper divisors (12708149126).

12021222010 is a wasteful number, since it uses less digits than its factorization.

12021222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171731757.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021222010 its reverse (1022212021), we get a palindrome (13043434031).

The spelling of 12021222010 in words is "twelve billion, twenty-one million, two hundred twenty-two thousand, ten".