21200102212201 has 16 divisors (see below), whose sum is σ = 23704970827968. Its totient is φ = 18797194152000.

The previous prime is 21200102212199. The next prime is 21200102212253. The reversal of 21200102212201 is 10221220100212.

It is a happy number.

It is not a de Polignac number, because 21200102212201 - 2¹ = 21200102212199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200102212001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142328550 + ... + 142477423.

It is an arithmetic number, because the mean of its divisors is an integer number (1481560676748).

Almost surely, 2^{21200102212201} is an apocalyptic number.

It is an amenable number.

21200102212201 is a deficient number, since it is larger than the sum of its proper divisors (2504868615767).

21200102212201 is a wasteful number, since it uses less digits than its factorization.

21200102212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284806152.

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

Adding to 21200102212201 its reverse (10221220100212), we get a palindrome (31421322312413).

The spelling of 21200102212201 in words is "twenty-one trillion, two hundred billion, one hundred two million, two hundred twelve thousand, two hundred one".