20211000212102 has 8 divisors (see below), whose sum is σ = 34647428935056. Its totient is φ = 8661857233752.

The previous prime is 20211000212101. The next prime is 20211000212159. The reversal of 20211000212102 is 20121200011202.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 1443642872293 = 20211000212102 / (2 + 0 + 2 + 1 + 1 + 0 + 0 + 0 + 2 + 1 + 2 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211000212101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721821436133 + ... + 721821436160.

It is an arithmetic number, because the mean of its divisors is an integer number (4330928616882).

Almost surely, 2^{20211000212102} is an apocalyptic number.

20211000212102 is a deficient number, since it is larger than the sum of its proper divisors (14436428722954).

20211000212102 is a wasteful number, since it uses less digits than its factorization.

20211000212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443642872302.

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

Adding to 20211000212102 its reverse (20121200011202), we get a palindrome (40332200223304).

The spelling of 20211000212102 in words is "twenty trillion, two hundred eleven billion, two hundred twelve thousand, one hundred two".