21202010012211 has 16 divisors (see below), whose sum is σ = 32309490495744. Its totient is φ = 12114809649504.

The previous prime is 21202010012191. The next prime is 21202010012263. The reversal of 21202010012211 is 11221001020212.

It is not a de Polignac number, because 21202010012211 - 2⁶ = 21202010012147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202010032211) 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, 25609636 + ... + 26424561.

It is an arithmetic number, because the mean of its divisors is an integer number (2019343155984).

Almost surely, 2^{21202010012211} is an apocalyptic number.

21202010012211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21202010012211 is a deficient number, since it is larger than the sum of its proper divisors (11107480483533).

21202010012211 is a wasteful number, since it uses less digits than its factorization.

21202010012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52053610.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21202010012211 its reverse (11221001020212), we get a palindrome (32423011032423).

The spelling of 21202010012211 in words is "twenty-one trillion, two hundred two billion, ten million, twelve thousand, two hundred eleven".