21022000001211 has 8 divisors (see below), whose sum is σ = 30577454547264. Its totient is φ = 12740606061320.

The previous prime is 21022000001201. The next prime is 21022000001263. The reversal of 21022000001211 is 11210000022012.

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

It is a cyclic number.

It is not a de Polignac number, because 21022000001211 - 2¹⁰ = 21022000000187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022000001201) 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, 318515151501 + ... + 318515151566.

It is an arithmetic number, because the mean of its divisors is an integer number (3822181818408).

Almost surely, 2^{21022000001211} is an apocalyptic number.

21022000001211 is a deficient number, since it is larger than the sum of its proper divisors (9555454546053).

21022000001211 is a wasteful number, since it uses less digits than its factorization.

21022000001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637030303081.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21022000001211 its reverse (11210000022012), we get a palindrome (32232000023223).

The spelling of 21022000001211 in words is "twenty-one trillion, twenty-two billion, one thousand, two hundred eleven".