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2120201211212 = 227167453421987
BaseRepresentation
bin11110110110100101110…
…101110000110101001100
321111200121110122001100122
4132312211311300311030
5234214133002224322
64302001302044112
7306115363641050
oct36664565606514
97450543561318
102120201211212
11748199345967
122a2aab119638
13124c1b33b116
1474892811c60
153a24097b442
hex1eda5d70d4c

2120201211212 has 24 divisors (see below), whose sum is σ = 4265794063104. Its totient is φ = 903216596112.

The previous prime is 2120201211187. The next prime is 2120201211299. The reversal of 2120201211212 is 2121121020212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226706318 + ... + 226715669.

It is an arithmetic number, because the mean of its divisors is an integer number (177741419296).

Almost surely, 22120201211212 is an apocalyptic number.

It is an amenable number.

2120201211212 is an abundant number, since it is smaller than the sum of its proper divisors (2145592851892).

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

2120201211212 is a wasteful number, since it uses less digits than its factorization.

2120201211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453422165 (or 453422163 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2120201211212 its reverse (2121121020212), we get a palindrome (4241322231424).

The spelling of 2120201211212 in words is "two trillion, one hundred twenty billion, two hundred one million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 167 334 668 1169 2338 4676 453421987 906843974 1813687948 3173953909 6347907818 12695815636 75721471829 151442943658 302885887316 530050302803 1060100605606 2120201211212