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2012212111210 = 257219216134491
BaseRepresentation
bin11101010010000001001…
…100000010011101101010
321010100212112002101012021
4131102001030002131222
5230432002300024320
64140221504535054
7265243330510600
oct35220114023552
97110775071167
102012212111210
11706413307784
12285b9192148a
1311799b633992
146d56a723870
153752019adaa
hex1d48130276a

2012212111210 has 48 divisors (see below), whose sum is σ = 4435079775840. Its totient is φ = 653590697760.

The previous prime is 2012212111183. The next prime is 2012212111213. The reversal of 2012212111210 is 121112122102.

It is not an unprimeable number, because it can be changed into a prime (2012212111213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108057936 + ... + 108076555.

It is an arithmetic number, because the mean of its divisors is an integer number (92397495330).

Almost surely, 22012212111210 is an apocalyptic number.

2012212111210 is an abundant number, since it is smaller than the sum of its proper divisors (2422867664630).

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

2012212111210 is a wasteful number, since it uses less digits than its factorization.

2012212111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216134531 (or 216134524 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012212111210 its reverse (121112122102), we get a palindrome (2133324233312).

The spelling of 2012212111210 in words is "two trillion, twelve billion, two hundred twelve million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 490 665 931 1330 1862 4655 9310 216134491 432268982 1080672455 1512941437 2161344910 3025882874 4106555329 7564707185 8213110658 10590590059 15129414370 20532776645 21181180118 28745887303 41065553290 52952950295 57491774606 105905900590 143729436515 201221211121 287458873030 402442422242 1006106055605 2012212111210