21202102022011 has 8 divisors (see below), whose sum is σ = 22528610592624. Its totient is φ = 19884407462400.

The previous prime is 21202102021967. The next prime is 21202102022039. The reversal of 21202102022011 is 11022020120212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21202102022011 - 2¹³ = 21202102013819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202102022041) 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, 2203497790 + ... + 2203507411.

It is an arithmetic number, because the mean of its divisors is an integer number (2816076324078).

Almost surely, 2^{21202102022011} is an apocalyptic number.

21202102022011 is a deficient number, since it is larger than the sum of its proper divisors (1326508570613).

21202102022011 is a wasteful number, since it uses less digits than its factorization.

21202102022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407005501.

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

Adding to 21202102022011 its reverse (11022020120212), we get a palindrome (32224122142223).

The spelling of 21202102022011 in words is "twenty-one trillion, two hundred two billion, one hundred two million, twenty-two thousand, eleven".