21122022201 has 16 divisors (see below), whose sum is σ = 33879936000. Its totient is φ = 11434477968.

The previous prime is 21122022191. The next prime is 21122022223. The reversal of 21122022201 is 10222022112.

It is not a de Polignac number, because 21122022201 - 2⁹ = 21122021689 is a prime.

It is a super-2 number, since 2×21122022201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122022401) 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, 26468301 + ... + 26469098.

It is an arithmetic number, because the mean of its divisors is an integer number (2117496000).

Almost surely, 2^21122022201 is an apocalyptic number.

21122022201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21122022201 is a deficient number, since it is larger than the sum of its proper divisors (12757913799).

21122022201 is a wasteful number, since it uses less digits than its factorization.

21122022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52937428.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21122022201 its reverse (10222022112), we get a palindrome (31344044313).

The spelling of 21122022201 in words is "twenty-one billion, one hundred twenty-two million, twenty-two thousand, two hundred one".