21121110010222 has 32 divisors (see below), whose sum is σ = 32944538029824. Its totient is φ = 10144625587200.

The previous prime is 21121110010211. The next prime is 21121110010223. The reversal of 21121110010222 is 22201001112112.

It is a super-2 number, since 2×21121110010222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21121110010196 and 21121110010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21121110010223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143653498 + ... + 143800450.

It is an arithmetic number, because the mean of its divisors is an integer number (1029516813432).

Almost surely, 2^{21121110010222} is an apocalyptic number.

21121110010222 is a deficient number, since it is larger than the sum of its proper divisors (11823428019602).

21121110010222 is a wasteful number, since it uses less digits than its factorization.

21121110010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164044.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21121110010222 its reverse (22201001112112), we get a palindrome (43322111122334).

The spelling of 21121110010222 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred ten million, ten thousand, two hundred twenty-two".