2121220200022 has 32 divisors (see below), whose sum is σ = 4005471435264. Its totient is φ = 818425641600.

The previous prime is 2121220199983. The next prime is 2121220200023. The reversal of 2121220200022 is 2200020221212.

It is a junction number, because it is equal to n+sod(n) for n = 2121220199969 and 2121220200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121220200023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66848979 + ... + 66880702.

It is an arithmetic number, because the mean of its divisors is an integer number (125170982352).

Almost surely, 2^{2121220200022} is an apocalyptic number.

2121220200022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2121220200022 is a deficient number, since it is larger than the sum of its proper divisors (1884251235242).

2121220200022 is a wasteful number, since it uses less digits than its factorization.

2121220200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133729804.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2121220200022 its reverse (2200020221212), we get a palindrome (4321240421234).

The spelling of 2121220200022 in words is "two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred thousand, twenty-two".