21202101002211 has 16 divisors (see below), whose sum is σ = 29506271625216. Its totient is φ = 13516652870336.

The previous prime is 21202101002197. The next prime is 21202101002221. The reversal of 21202101002211 is 11220010120212.

It is a cyclic number.

It is not a de Polignac number, because 21202101002211 - 2⁵ = 21202101002179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202101002221) 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, 39818595 + ... + 40347548.

It is an arithmetic number, because the mean of its divisors is an integer number (1844141976576).

Almost surely, 2^{21202101002211} is an apocalyptic number.

21202101002211 is a deficient number, since it is larger than the sum of its proper divisors (8304170623005).

21202101002211 is a wasteful number, since it uses less digits than its factorization.

21202101002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80170002.

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

Adding to 21202101002211 its reverse (11220010120212), we get a palindrome (32422111122423).

The spelling of 21202101002211 in words is "twenty-one trillion, two hundred two billion, one hundred one million, two thousand, two hundred eleven".