22121001100222 has 4 divisors (see below), whose sum is σ = 33181501650336. Its totient is φ = 11060500550110.

The previous prime is 22121001100199. The next prime is 22121001100277. The reversal of 22121001100222 is 22200110012122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 22121001100196 and 22121001100205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530250275054 + ... + 5530250275057.

It is an arithmetic number, because the mean of its divisors is an integer number (8295375412584).

Almost surely, 2^{22121001100222} is an apocalyptic number.

22121001100222 is a deficient number, since it is larger than the sum of its proper divisors (11060500550114).

22121001100222 is a wasteful number, since it uses less digits than its factorization.

22121001100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060500550113.

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

Adding to 22121001100222 its reverse (22200110012122), we get a palindrome (44321111112344).

The spelling of 22121001100222 in words is "twenty-two trillion, one hundred twenty-one billion, one million, one hundred thousand, two hundred twenty-two".