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2120212221212 = 221094862872067
BaseRepresentation
bin11110110110100110011…
…111110000110100011100
321111200122020100102020102
4132312212133300310130
5234214143312034322
64302002334040232
7306115556345141
oct36664637606434
97450566312212
102120212221212
117481a4585938
122a2ab2949078
13124c206c4607
147489407a3c8
153a241903792
hex1eda67f0d1c

2120212221212 has 12 divisors (see below), whose sum is σ = 3744411492360. Its totient is φ = 1050380366256.

The previous prime is 2120212221143. The next prime is 2120212221277. The reversal of 2120212221212 is 2121222120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2431435598 + ... + 2431436469.

It is an arithmetic number, because the mean of its divisors is an integer number (312034291030).

Almost surely, 22120212221212 is an apocalyptic number.

It is an amenable number.

2120212221212 is a deficient number, since it is larger than the sum of its proper divisors (1624199271148).

2120212221212 is a wasteful number, since it uses less digits than its factorization.

2120212221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862872180 (or 4862872178 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2120212221212 its reverse (2121222120212), we get a palindrome (4241434341424).

The spelling of 2120212221212 in words is "two trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twelve".