22121201211222 has 48 divisors (see below), whose sum is σ = 45981365910480. Its totient is φ = 7093831675392.

The previous prime is 22121201211211. The next prime is 22121201211233. The reversal of 22121201211222 is 22211210212122.

It is an interprime number because it is at equal distance from previous prime (22121201211211) and next prime (22121201211233).

It is a super-4 number, since 4×22121201211222⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14398783 + ... + 15860874.

It is an arithmetic number, because the mean of its divisors is an integer number (957945123135).

Almost surely, 2^{22121201211222} is an apocalyptic number.

22121201211222 is an abundant number, since it is smaller than the sum of its proper divisors (23860164699258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121201211222 is a wasteful number, since it uses less digits than its factorization.

22121201211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30259825 (or 30259788 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22121201211222 its reverse (22211210212122), we get a palindrome (44332411423344).

The spelling of 22121201211222 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred one million, two hundred eleven thousand, two hundred twenty-two".