22001212101 has 16 divisors (see below), whose sum is σ = 32016840768. Its totient is φ = 13327785600.

The previous prime is 22001212081. The next prime is 22001212109. The reversal of 22001212101 is 10121210022.

It is not a de Polignac number, because 22001212101 - 2¹¹ = 22001210053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001212109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85470 + ... + 226511.

It is an arithmetic number, because the mean of its divisors is an integer number (2001052548).

Almost surely, 2^22001212101 is an apocalyptic number.

It is an amenable number.

22001212101 is a deficient number, since it is larger than the sum of its proper divisors (10015628667).

22001212101 is a wasteful number, since it uses less digits than its factorization.

22001212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314132.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22001212101 its reverse (10121210022), we get a palindrome (32122422123).

The spelling of 22001212101 in words is "twenty-two billion, one million, two hundred twelve thousand, one hundred one".