20121222011210 has 8 divisors (see below), whose sum is σ = 36218199620196. Its totient is φ = 8048488804480.

The previous prime is 20121222011203. The next prime is 20121222011239. The reversal of 20121222011210 is 1211022212102.

It can be written as a sum of positive squares in 2 ways, for example, as 17490269886769 + 2630952124441 = 4182137^2 + 1622021^2 .

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, 1006061100551 + ... + 1006061100570.

Almost surely, 2^{20121222011210} is an apocalyptic number.

20121222011210 is a deficient number, since it is larger than the sum of its proper divisors (16096977608986).

20121222011210 is a wasteful number, since it uses less digits than its factorization.

20121222011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012122201128.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20121222011210 its reverse (1211022212102), we get a palindrome (21332244223312).

The spelling of 20121222011210 in words is "twenty trillion, one hundred twenty-one billion, two hundred twenty-two million, eleven thousand, two hundred ten".