21122110022101 has 8 divisors (see below), whose sum is σ = 23042739784608. Its totient is φ = 19201553250000.

The previous prime is 21122110022071. The next prime is 21122110022149. The reversal of 21122110022101 is 10122001122112.

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

It is not a de Polignac number, because 21122110022101 - 2⁹ = 21122110021589 is a prime.

It is a super-2 number, since 2×21122110022101² (a number of 27 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 (21122110022191) 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, 17641650 + ... + 18800851.

It is an arithmetic number, because the mean of its divisors is an integer number (2880342473076).

Almost surely, 2^{21122110022101} is an apocalyptic number.

It is an amenable number.

21122110022101 is a deficient number, since it is larger than the sum of its proper divisors (1920629762507).

21122110022101 is a wasteful number, since it uses less digits than its factorization.

21122110022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36495203.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21122110022101 its reverse (10122001122112), we get a palindrome (31244111144213).

The spelling of 21122110022101 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred ten million, twenty-two thousand, one hundred one".