22012212012001 has 8 divisors (see below), whose sum is σ = 22607238015144. Its totient is φ = 21417191343360.

The previous prime is 22012212011987. The next prime is 22012212012013. The reversal of 22012212012001 is 10021021221022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4264022632401 + 17748189379600 = 2064951^2 + 4212860^2 .

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

It is not a de Polignac number, because 22012212012001 - 2²⁹ = 22011675141089 is a prime.

It is a super-2 number, since 2×22012212012001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012212012601) 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, 7879431 + ... + 10300963.

It is an arithmetic number, because the mean of its divisors is an integer number (2825904751893).

Almost surely, 2^{22012212012001} is an apocalyptic number.

It is an amenable number.

22012212012001 is a deficient number, since it is larger than the sum of its proper divisors (595026003143).

22012212012001 is a wasteful number, since it uses less digits than its factorization.

22012212012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667251.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22012212012001 its reverse (10021021221022), we get a palindrome (32033233233023).

The spelling of 22012212012001 in words is "twenty-two trillion, twelve billion, two hundred twelve million, twelve thousand, one".