22121001220011 has 8 divisors (see below), whose sum is σ = 31229648781264. Its totient is φ = 13879843902720.

The previous prime is 22121001219973. The next prime is 22121001220037. The reversal of 22121001220011 is 11002210012122.

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

It is not a de Polignac number, because 22121001220011 - 2³¹ = 22118853736363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121001220811) 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, 216872560930 + ... + 216872561031.

It is an arithmetic number, because the mean of its divisors is an integer number (3903706097658).

Almost surely, 2^{22121001220011} is an apocalyptic number.

22121001220011 is a deficient number, since it is larger than the sum of its proper divisors (9108647561253).

22121001220011 is a wasteful number, since it uses less digits than its factorization.

22121001220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433745121981.

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

Adding to 22121001220011 its reverse (11002210012122), we get a palindrome (33123211232133).

The spelling of 22121001220011 in words is "twenty-two trillion, one hundred twenty-one billion, one million, two hundred twenty thousand, eleven".