20121111212002 has 8 divisors (see below), whose sum is σ = 30210438667500. Its totient is φ = 10050964989504.

The previous prime is 20121111211961. The next prime is 20121111212057. The reversal of 20121111212002 is 20021211112102.

It can be written as a sum of positive squares in 2 ways, for example, as 20114426677921 + 6684534081 = 4484911^2 + 81759^2 .

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, 4795305627 + ... + 4795309822.

Almost surely, 2^{20121111212002} is an apocalyptic number.

20121111212002 is a deficient number, since it is larger than the sum of its proper divisors (10089327455498).

20121111212002 is a wasteful number, since it uses less digits than its factorization.

20121111212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590616500.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20121111212002 its reverse (20021211112102), we get a palindrome (40142322324104).

The spelling of 20121111212002 in words is "twenty trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, two".