22121202001211 has 8 divisors (see below), whose sum is σ = 23179574960640. Its totient is φ = 21070877505832.

The previous prime is 22121202001169. The next prime is 22121202001271. The reversal of 22121202001211 is 11210020212122.

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 22121202001211 - 2¹⁰ = 22121202000187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22121202001211.

It is not an unprimeable number, because it can be changed into a prime (22121202001271) 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, 2012110385 + ... + 2012121378.

It is an arithmetic number, because the mean of its divisors is an integer number (2897446870080).

Almost surely, 2^{22121202001211} is an apocalyptic number.

22121202001211 is a deficient number, since it is larger than the sum of its proper divisors (1058372959429).

22121202001211 is a wasteful number, since it uses less digits than its factorization.

22121202001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024232025.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22121202001211 its reverse (11210020212122), we get a palindrome (33331222213333).

The spelling of 22121202001211 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred two million, one thousand, two hundred eleven".