20212120110002 has 4 divisors (see below), whose sum is σ = 30318180165006. Its totient is φ = 10106060055000.

The previous prime is 20212120110001. The next prime is 20212120110011. The reversal of 20212120110002 is 20001102121202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16670162233921 + 3541957876081 = 4082911^2 + 1882009^2 .

It is a super-2 number, since 2×20212120110002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20212120110001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053030027499 + ... + 5053030027502.

Almost surely, 2^{20212120110002} is an apocalyptic number.

20212120110002 is a deficient number, since it is larger than the sum of its proper divisors (10106060055004).

20212120110002 is a wasteful number, since it uses less digits than its factorization.

20212120110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106060055003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20212120110002 its reverse (20001102121202), we get a palindrome (40213222231204).

The spelling of 20212120110002 in words is "twenty trillion, two hundred twelve billion, one hundred twenty million, one hundred ten thousand, two".