22121102101 has 16 divisors (see below), whose sum is σ = 25946939520. Its totient is φ = 18468046080.

The previous prime is 22121102027. The next prime is 22121102137. The reversal of 22121102101 is 10120112122.

It is a cyclic number.

It is not a de Polignac number, because 22121102101 - 2³¹ = 19973618453 is a prime.

It is a super-2 number, since 2×22121102101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121132101) 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, 223240 + ... + 306721.

It is an arithmetic number, because the mean of its divisors is an integer number (1621683720).

Almost surely, 2^22121102101 is an apocalyptic number.

It is an amenable number.

22121102101 is a deficient number, since it is larger than the sum of its proper divisors (3825837419).

22121102101 is an equidigital number, since it uses as much as digits as its factorization.

22121102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530124.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22121102101 its reverse (10120112122), we get a palindrome (32241214223).

The spelling of 22121102101 in words is "twenty-two billion, one hundred twenty-one million, one hundred two thousand, one hundred one".