12021221010010 has 8 divisors (see below), whose sum is σ = 21638197818036. Its totient is φ = 4808488404000.

The previous prime is 12021221009969. The next prime is 12021221010041. The reversal of 12021221010010 is 1001012212021.

It can be written as a sum of positive squares in 2 ways, for example, as 11568032194761 + 453188815249 = 3401181^2 + 673193^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601061050491 + ... + 601061050510.

Almost surely, 2^{12021221010010} is an apocalyptic number.

12021221010010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021221010010 is a deficient number, since it is larger than the sum of its proper divisors (9616976808026).

12021221010010 is a wasteful number, since it uses less digits than its factorization.

12021221010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202122101008.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021221010010 its reverse (1001012212021), we get a palindrome (13022233222031).

The spelling of 12021221010010 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, ten thousand, ten".