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2120202213213 = 37712715247233
BaseRepresentation
bin11110110110100101111…
…001100101011101011101
321111200121112111221211210
4132312211321211131131
5234214133231310323
64302001335335033
7306115405313250
oct36664571453535
97450545457753
102120202213213
1174819996a767
122a2aab521479
13124c1b5cc216
14748929d3097
153a240ac8293
hex1eda5e6575d

2120202213213 has 32 divisors (see below), whose sum is σ = 3288378580992. Its totient is φ = 1190072217600.

The previous prime is 2120202213193. The next prime is 2120202213271. The reversal of 2120202213213 is 3123122020212.

It is not a de Polignac number, because 2120202213213 - 28 = 2120202212957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2120202213213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120202213013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2219556 + ... + 3027677.

It is an arithmetic number, because the mean of its divisors is an integer number (102761830656).

Almost surely, 22120202213213 is an apocalyptic number.

It is an amenable number.

2120202213213 is a deficient number, since it is larger than the sum of its proper divisors (1168176367779).

2120202213213 is a wasteful number, since it uses less digits than its factorization.

2120202213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247585.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2120202213213 its reverse (3123122020212), we get a palindrome (5243324233425).

The spelling of 2120202213213 in words is "two trillion, one hundred twenty billion, two hundred two million, two hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 7 21 71 213 271 497 813 1491 1897 5691 19241 57723 134687 404061 5247233 15741699 36730631 110191893 372553543 1117660629 1422000143 2607874801 4266000429 7823624403 9954001001 29862003003 100962010153 302886030459 706734071071 2120202213213