220121020022222 has 16 divisors (see below), whose sum is σ = 361230118830000. Its totient is φ = 99768318527040.

The previous prime is 220121020022173. The next prime is 220121020022249. The reversal of 220121020022222 is 222220020121022.

It is a super-2 number, since 2×220121020022222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220121020022194 and 220121020022203.

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, 14334520847 + ... + 14334536202.

It is an arithmetic number, because the mean of its divisors is an integer number (22576882426875).

Almost surely, 2^{220121020022222} is an apocalyptic number.

220121020022222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220121020022222 is a deficient number, since it is larger than the sum of its proper divisors (141109098807778).

220121020022222 is a wasteful number, since it uses less digits than its factorization.

220121020022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28669057411.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220121020022222 its reverse (222220020121022), we get a palindrome (442341040143244).

The spelling of 220121020022222 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty million, twenty-two thousand, two hundred twenty-two".