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120121202012 = 22712251350179
BaseRepresentation
bin110111111011111001…
…0000001010101011100
3102111001110020022101212
41233313302001111130
53432002011431022
6131103302123552
711451500241020
oct1576762012534
9374043208355
10120121202012
1146a41317a79
121b3444205b8
13b434342436
145b57496380
1531d09473e2
hex1bf7c8155c

120121202012 has 24 divisors (see below), whose sum is σ = 240262700160. Its totient is φ = 51476166000.

The previous prime is 120121201943. The next prime is 120121202023. The reversal of 120121202012 is 210202121021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167939 + ... + 518117.

It is an arithmetic number, because the mean of its divisors is an integer number (10010945840).

Almost surely, 2120121202012 is an apocalyptic number.

It is an amenable number.

120121202012 is an abundant number, since it is smaller than the sum of its proper divisors (120141498148).

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

120121202012 is a wasteful number, since it uses less digits than its factorization.

120121202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362441 (or 362439 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120121202012 its reverse (210202121021), we get a palindrome (330323323033).

The spelling of 120121202012 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred two thousand, twelve".

Divisors: 1 2 4 7 14 28 12251 24502 49004 85757 171514 343028 350179 700358 1400716 2451253 4902506 9805012 4290042929 8580085858 17160171716 30030300503 60060601006 120121202012