22121013401 has 4 divisors (see below), whose sum is σ = 22327751952. Its totient is φ = 21914274852.

The previous prime is 22121013391. The next prime is 22121013427. The reversal of 22121013401 is 10431012122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22121013401 - 2¹⁰ = 22121012377 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 22121013401.

It is not an unprimeable number, because it can be changed into a prime (22121013451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103369115 + ... + 103369328.

It is an arithmetic number, because the mean of its divisors is an integer number (5581937988).

Almost surely, 2^22121013401 is an apocalyptic number.

It is an amenable number.

22121013401 is a deficient number, since it is larger than the sum of its proper divisors (206738551).

22121013401 is a wasteful number, since it uses less digits than its factorization.

22121013401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206738550.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22121013401 its reverse (10431012122), we get a palindrome (32552025523).

The spelling of 22121013401 in words is "twenty-two billion, one hundred twenty-one million, thirteen thousand, four hundred one".