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120020221005 = 35109331221773
BaseRepresentation
bin110111111000111000…
…0110011110001001101
3102110210102012221111120
41233301300303301031
53431300134033010
6131045253511153
711446133021526
oct1576160636115
9373712187446
10120020221005
114699a3164a3
121b3166424b9
13b419447269
145b47ccb84d
1531c6b4be70
hex1bf1c33c4d

120020221005 has 32 divisors (see below), whose sum is σ = 194380475520. Its totient is φ = 63231632640.

The previous prime is 120020220941. The next prime is 120020221031. The reversal of 120020221005 is 500122020021.

It is not a de Polignac number, because 120020221005 - 26 = 120020220941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430299 + ... + 652071.

It is an arithmetic number, because the mean of its divisors is an integer number (6074389860).

Almost surely, 2120020221005 is an apocalyptic number.

120020221005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120020221005 is a deficient number, since it is larger than the sum of its proper divisors (74360254515).

120020221005 is a wasteful number, since it uses less digits than its factorization.

120020221005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222221.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 120020221005 its reverse (500122020021), we get a palindrome (620142241026).

The spelling of 120020221005 in words is "one hundred twenty billion, twenty million, two hundred twenty-one thousand, five".

Divisors: 1 3 5 15 109 327 331 545 993 1635 1655 4965 36079 108237 180395 221773 541185 665319 1108865 3326595 24173257 72519771 73406863 120866285 220220589 362598855 367034315 1101102945 8001348067 24004044201 40006740335 120020221005