21220102010211 has 32 divisors (see below), whose sum is σ = 30891956004672. Its totient is φ = 12877693009920.

The previous prime is 21220102010209. The next prime is 21220102010249. The reversal of 21220102010211 is 11201020102212.

It is not a de Polignac number, because 21220102010211 - 2¹ = 21220102010209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21220102010311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18380931 + ... + 19501251.

It is an arithmetic number, because the mean of its divisors is an integer number (965373625146).

Almost surely, 2^{21220102010211} is an apocalyptic number.

21220102010211 is a deficient number, since it is larger than the sum of its proper divisors (9671853994461).

21220102010211 is a wasteful number, since it uses less digits than its factorization.

21220102010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127063.

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

Adding to 21220102010211 its reverse (11201020102212), we get a palindrome (32421122112423).

The spelling of 21220102010211 in words is "twenty-one trillion, two hundred twenty billion, one hundred two million, ten thousand, two hundred eleven".