21122022101 has 8 divisors (see below), whose sum is σ = 22042654080. Its totient is φ = 20201580432.

The previous prime is 21122022067. The next prime is 21122022109. The reversal of 21122022101 is 10122022112.

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

It is not a de Polignac number, because 21122022101 - 2³⁰ = 20048280277 is a prime.

It is a super-2 number, since 2×21122022101² (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 (21122022109) 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, 208655 + ... + 292883.

It is an arithmetic number, because the mean of its divisors is an integer number (2755331760).

Almost surely, 2^21122022101 is an apocalyptic number.

It is an amenable number.

21122022101 is a deficient number, since it is larger than the sum of its proper divisors (920631979).

21122022101 is a wasteful number, since it uses less digits than its factorization.

21122022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95155.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21122022101 its reverse (10122022112), we get a palindrome (31244044213).

The spelling of 21122022101 in words is "twenty-one billion, one hundred twenty-two million, twenty-two thousand, one hundred one".