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120232221221 = 7169931010771
BaseRepresentation
bin110111111111001100…
…1100001101000100101
3102111100012010200010102
41233332121201220211
53432213422034341
6131122305433445
711454316006130
oct1577631415045
9374305120112
10120232221221
1146a98a55392
121b37563b885
13b451343688
145b68115217
1531da576c9b
hex1bfe661a25

120232221221 has 8 divisors (see below), whose sum is σ = 137416474944. Its totient is φ = 103050023040.

The previous prime is 120232221127. The next prime is 120232221223. The reversal of 120232221221 is 122122232021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120232221221 - 222 = 120228026917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120232221193 and 120232221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120232221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386435 + ... + 624336.

It is an arithmetic number, because the mean of its divisors is an integer number (17177059368).

Almost surely, 2120232221221 is an apocalyptic number.

It is an amenable number.

120232221221 is a deficient number, since it is larger than the sum of its proper divisors (17184253723).

120232221221 is a wasteful number, since it uses less digits than its factorization.

120232221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027771.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 120232221221 its reverse (122122232021), we get a palindrome (242354453242).

The spelling of 120232221221 in words is "one hundred twenty billion, two hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 7 16993 118951 1010771 7075397 17176031603 120232221221