22011001001205 has 16 divisors (see below), whose sum is σ = 35317368187200. Its totient is φ = 11705945005568.

The previous prime is 22011001001131. The next prime is 22011001001221. The reversal of 22011001001205 is 50210010011022.

It is a cyclic number.

It is not a de Polignac number, because 22011001001205 - 2²⁰ = 22010999952629 is a prime.

It is a super-2 number, since 2×22011001001205² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078465055 + ... + 2078475644.

It is an arithmetic number, because the mean of its divisors is an integer number (2207335511700).

Almost surely, 2^{22011001001205} is an apocalyptic number.

It is an amenable number.

22011001001205 is a deficient number, since it is larger than the sum of its proper divisors (13306367185995).

22011001001205 is a wasteful number, since it uses less digits than its factorization.

22011001001205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156941060.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 22011001001205 its reverse (50210010011022), we get a palindrome (72221011012227).

The spelling of 22011001001205 in words is "twenty-two trillion, eleven billion, one million, one thousand, two hundred five".