22012222101001 has 4 divisors (see below), whose sum is σ = 24013333201104. Its totient is φ = 20011111000900.

The previous prime is 22012222100993. The next prime is 22012222101101. The reversal of 22012222101001 is 10010122221022.

It is a happy number.

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 22012222101001 - 2³ = 22012222100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012222101101) 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, 1000555550035 + ... + 1000555550056.

It is an arithmetic number, because the mean of its divisors is an integer number (6003333300276).

Almost surely, 2^{22012222101001} is an apocalyptic number.

It is an amenable number.

22012222101001 is a deficient number, since it is larger than the sum of its proper divisors (2001111100103).

22012222101001 is a wasteful number, since it uses less digits than its factorization.

22012222101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001111100102.

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

Adding to 22012222101001 its reverse (10010122221022), we get a palindrome (32022344322023).

The spelling of 22012222101001 in words is "twenty-two trillion, twelve billion, two hundred twenty-two million, one hundred one thousand, one".