22211002020121 has 4 divisors (see below), whose sum is σ = 22258563052752. Its totient is φ = 22163440987492.

The previous prime is 22211002020101. The next prime is 22211002020127. The reversal of 22211002020121 is 12102020011222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22211002020121 - 2³⁷ = 22073563066649 is a prime.

It is a super-2 number, since 2×22211002020121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211002020095 and 22211002020104.

It is not an unprimeable number, because it can be changed into a prime (22211002020127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23780515615 + ... + 23780516548.

It is an arithmetic number, because the mean of its divisors is an integer number (5564640763188).

Almost surely, 2^{22211002020121} is an apocalyptic number.

It is an amenable number.

22211002020121 is a deficient number, since it is larger than the sum of its proper divisors (47561032631).

22211002020121 is an equidigital number, since it uses as much as digits as its factorization.

22211002020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47561032630.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211002020121 its reverse (12102020011222), we get a palindrome (34313022031343).

The spelling of 22211002020121 in words is "twenty-two trillion, two hundred eleven billion, two million, twenty thousand, one hundred twenty-one".