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1212201120202 = 219311029033209
BaseRepresentation
bin10001101000111100110…
…100010011000111001010
311021212220101021020101021
4101220330310103013022
5124330041441321302
62324513312543054
7153402321341032
oct21507464230712
94255811236337
101212201120202
11428100a26306
12176b23851a8a
138a405309667
1442956b3a8c2
15217eae37437
hex11a3cd131ca

1212201120202 has 16 divisors (see below), whose sum is σ = 1975743763200. Its totient is φ = 555677932320.

The previous prime is 1212201120161. The next prime is 1212201120217. The reversal of 1212201120202 is 2020211022121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514515427 + ... + 514517782.

It is an arithmetic number, because the mean of its divisors is an integer number (123483985200).

Almost surely, 21212201120202 is an apocalyptic number.

1212201120202 is a deficient number, since it is larger than the sum of its proper divisors (763542642998).

1212201120202 is a wasteful number, since it uses less digits than its factorization.

1212201120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029033261.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212201120202 its reverse (2020211022121), we get a palindrome (3232412142323).

The spelling of 1212201120202 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred twenty thousand, two hundred two".

Divisors: 1 2 19 31 38 62 589 1178 1029033209 2058066418 19551630971 31900029479 39103261942 63800058958 606100560101 1212201120202