20201210212102 has 16 divisors (see below), whose sum is σ = 30372542063424. Its totient is φ = 10077041737000.

The previous prime is 20201210212039. The next prime is 20201210212103. The reversal of 20201210212102 is 20121201210202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201210212103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259077 + ... + 6361567.

It is an arithmetic number, because the mean of its divisors is an integer number (1898283878964).

Almost surely, 2^{20201210212102} is an apocalyptic number.

20201210212102 is a deficient number, since it is larger than the sum of its proper divisors (10171331851322).

20201210212102 is a wasteful number, since it uses less digits than its factorization.

20201210212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106355.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20201210212102 its reverse (20121201210202), we get a palindrome (40322411422304).

The spelling of 20201210212102 in words is "twenty trillion, two hundred one billion, two hundred ten million, two hundred twelve thousand, one hundred two".