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20122221030213 = 329231289896899
BaseRepresentation
bin1001001001101000100011…
…10101100010101101000101
32122020122222011220010211110
410210310101311202231011
510114140302040431323
6110444004250555233
74144532252443011
oct444642165425505
978218864803743
1020122221030213
116458871206015
12230b9a3138b19
13b2c695683a63
144d7cc6557541
1524d659d0e793
hex124d11d62b45

20122221030213 has 8 divisors (see below), whose sum is σ = 27754787628000. Its totient is φ = 12952234226288.

The previous prime is 20122221030203. The next prime is 20122221030227. The reversal of 20122221030213 is 31203012222102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20122221030213 - 28 = 20122221029957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122221030213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122221030203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115644948363 + ... + 115644948536.

It is an arithmetic number, because the mean of its divisors is an integer number (3469348453500).

Almost surely, 220122221030213 is an apocalyptic number.

It is an amenable number.

20122221030213 is a deficient number, since it is larger than the sum of its proper divisors (7632566597787).

20122221030213 is a wasteful number, since it uses less digits than its factorization.

20122221030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231289896931.

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

Adding to 20122221030213 its reverse (31203012222102), we get a palindrome (51325233252315).

The spelling of 20122221030213 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-one million, thirty thousand, two hundred thirteen".

Divisors: 1 3 29 87 231289896899 693869690697 6707407010071 20122221030213