22021121201222 has 16 divisors (see below), whose sum is σ = 38806451348112. Its totient is φ = 9239631273120.

The previous prime is 22021121201197. The next prime is 22021121201239. The reversal of 22021121201222 is 22210212112022.

It is a junction number, because it is equal to n+sod(n) for n = 22021121201194 and 22021121201203.

It is a congruent number.

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, 38498463353 + ... + 38498463924.

It is an arithmetic number, because the mean of its divisors is an integer number (2425403209257).

Almost surely, 2^{22021121201222} is an apocalyptic number.

22021121201222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22021121201222 is a deficient number, since it is larger than the sum of its proper divisors (16785330146890).

22021121201222 is a wasteful number, since it uses less digits than its factorization.

22021121201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76996927303.

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

Adding to 22021121201222 its reverse (22210212112022), we get a palindrome (44231333313244).

The spelling of 22021121201222 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".