22121221020122 has 16 divisors (see below), whose sum is σ = 37965333897600. Its totient is φ = 9469713114288.

The previous prime is 22121221020113. The next prime is 22121221020131. The reversal of 22121221020122 is 22102012212122.

It is an interprime number because it is at equal distance from previous prime (22121221020113) and next prime (22121221020131).

It is a junction number, because it is equal to n+sod(n) for n = 22121221020094 and 22121221020103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900835622 + ... + 900860177.

It is an arithmetic number, because the mean of its divisors is an integer number (2372833368600).

Almost surely, 2^{22121221020122} is an apocalyptic number.

22121221020122 is a deficient number, since it is larger than the sum of its proper divisors (15844112877478).

22121221020122 is a wasteful number, since it uses less digits than its factorization.

22121221020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801696685.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22121221020122 its reverse (22102012212122), we get a palindrome (44223233232244).

The spelling of 22121221020122 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-one million, twenty thousand, one hundred twenty-two".