22121211022 has 8 divisors (see below), whose sum is σ = 33187037400. Its totient is φ = 11058865224.

The previous prime is 22121210999. The next prime is 22121211023. The reversal of 22121211022 is 22011212122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22121210987 and 22121211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121211023) 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, 854197 + ... + 879712.

It is an arithmetic number, because the mean of its divisors is an integer number (4148379675).

Almost surely, 2^22121211022 is an apocalyptic number.

22121211022 is a deficient number, since it is larger than the sum of its proper divisors (11065826378).

22121211022 is a wasteful number, since it uses less digits than its factorization.

22121211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740290.

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

Adding to 22121211022 its reverse (22011212122), we get a palindrome (44132423144).

The spelling of 22121211022 in words is "twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, twenty-two".