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120220100221 = 1386310715759
BaseRepresentation
bin110111111110110101…
…1010010011001111101
3102111022100022212020111
41233331223102121331
53432202321201341
6131121153550021
711454110664004
oct1577553223175
9374270285214
10120220100221
1146a92126731
121b371575311
13b44b98b5a0
145b6667bc3b
1531d9480681
hex1bfdad267d

120220100221 has 8 divisors (see below), whose sum is σ = 129617832960. Its totient is φ = 110843800752.

The previous prime is 120220100197. The next prime is 120220100233. The reversal of 120220100221 is 122001022021.

It is a happy number.

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 120220100221 - 215 = 120220067453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120220100261) 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, 5346661 + ... + 5369098.

It is an arithmetic number, because the mean of its divisors is an integer number (16202229120).

Almost surely, 2120220100221 is an apocalyptic number.

It is an amenable number.

120220100221 is a deficient number, since it is larger than the sum of its proper divisors (9397732739).

120220100221 is a wasteful number, since it uses less digits than its factorization.

120220100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716635.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120220100221 its reverse (122001022021), we get a palindrome (242221122242).

The spelling of 120220100221 in words is "one hundred twenty billion, two hundred twenty million, one hundred thousand, two hundred twenty-one".

Divisors: 1 13 863 11219 10715759 139304867 9247700017 120220100221