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20000122111213 = 199168127597781
BaseRepresentation
bin1001000110000101001000…
…01011001000010011101101
32121210222210220020101202021
410203002210023020103231
510110140222230024323
6110311532415230141
74132650445655146
oct443024413102355
977728726211667
1020000122111213
116411005590aa2
1222b01a8518351
13b210076998aa
144d2022566acd
1524a3b095705d
hex1230a42c84ed

20000122111213 has 8 divisors (see below), whose sum is σ = 20100778419200. Its totient is φ = 19899467335440.

The previous prime is 20000122111157. The next prime is 20000122111243. The reversal of 20000122111213 is 31211122100002.

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 20000122111213 - 29 = 20000122110701 is a prime.

It is a super-2 number, since 2×200001221112132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000122111243) 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, 33158383 + ... + 33756163.

It is an arithmetic number, because the mean of its divisors is an integer number (2512597302400).

Almost surely, 220000122111213 is an apocalyptic number.

It is an amenable number.

20000122111213 is a deficient number, since it is larger than the sum of its proper divisors (100656307987).

20000122111213 is a wasteful number, since it uses less digits than its factorization.

20000122111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766107.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20000122111213 its reverse (31211122100002), we get a palindrome (51211244211215).

The spelling of 20000122111213 in words is "twenty trillion, one hundred twenty-two million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 199 168127 597781 33457273 118958419 100503126187 20000122111213