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121022010012220 = 2256051100500611
BaseRepresentation
bin11011100001000110100001…
…111010101011001000111100
3120212111120221221220221002021
4123201012201322223020330
5111330311034030342340
61105220424402205524
734330360141022062
oct3341064172531074
9525446857827067
10121022010012220
113561a167684049
12116a6a623538a4
13526b432641785
1421c56d4702032
15ded0d8326e4a
hex6e11a1eab23c

121022010012220 has 12 divisors (see below), whose sum is σ = 254146221025704. Its totient is φ = 48408804004880.

The previous prime is 121022010012161. The next prime is 121022010012227. The reversal of 121022010012220 is 22210010220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121022010012194 and 121022010012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022010012227) 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 3 ways as a sum of consecutive naturals, for example, 3025550250286 + ... + 3025550250325.

It is an arithmetic number, because the mean of its divisors is an integer number (21178851752142).

Almost surely, 2121022010012220 is an apocalyptic number.

121022010012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022010012220 is an abundant number, since it is smaller than the sum of its proper divisors (133124211013484).

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

121022010012220 is a wasteful number, since it uses less digits than its factorization.

121022010012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051100500620 (or 6051100500618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022010012220 its reverse (22210010220121), we get a palindrome (143232020232341).

The spelling of 121022010012220 in words is "one hundred twenty-one trillion, twenty-two billion, ten million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6051100500611 12102201001222 24204402002444 30255502503055 60511005006110 121022010012220