21322121011222 has 16 divisors (see below), whose sum is σ = 32303344784544. Its totient is φ = 10554362280000.

The previous prime is 21322121011201. The next prime is 21322121011271. The reversal of 21322121011222 is 22211012122312.

It is a junction number, because it is equal to n+sod(n) for n = 21322121011193 and 21322121011202.

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, 3844554 + ... + 7577917.

It is an arithmetic number, because the mean of its divisors is an integer number (2018959049034).

Almost surely, 2^{21322121011222} is an apocalyptic number.

21322121011222 is a deficient number, since it is larger than the sum of its proper divisors (10981223773322).

21322121011222 is a wasteful number, since it uses less digits than its factorization.

21322121011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431815.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 21322121011222 its reverse (22211012122312), we get a palindrome (43533133133534).

The spelling of 21322121011222 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, eleven thousand, two hundred twenty-two".