220121022011022 has 48 divisors (see below), whose sum is σ = 521308225254960. Its totient is φ = 66572292153600.

The previous prime is 220121022010969. The next prime is 220121022011027. The reversal of 220121022011022 is 220110220121022.

It is a happy number.

220121022011022 is a `hidden beast` number, since 2 + 201 + 210 + 220 + 1 + 10 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220121022010986 and 220121022011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121022011027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1091964379 + ... + 1092165942.

It is an arithmetic number, because the mean of its divisors is an integer number (10860588026145).

Almost surely, 2^{220121022011022} is an apocalyptic number.

220121022011022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220121022011022 is an abundant number, since it is smaller than the sum of its proper divisors (301187203243938).

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

220121022011022 is a wasteful number, since it uses less digits than its factorization.

220121022011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184130849 (or 2184130846 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220121022011022 its reverse (220110220121022), we get a palindrome (440231242132044).

The spelling of 220121022011022 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty-two million, eleven thousand, twenty-two".