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121022130101 = 5315714544181
BaseRepresentation
bin111000010110101111…
…0110010011110110101
3102120101020111012101212
41300231132302132311
53440323131130401
6131332524131205
711513020063355
oct1605536623665
9376336435355
10121022130101
1147363923644
121b556096b05
13b548ba2392
145c00db4b65
153234aa8dbb
hex1c2d7b27b5

121022130101 has 8 divisors (see below), whose sum is σ = 124090960824. Its totient is φ = 117982388160.

The previous prime is 121022130079. The next prime is 121022130121. The reversal of 121022130101 is 101031220121.

It can be written as a sum of positive squares in 4 ways, for example, as 6728100625 + 114294029476 = 82025^2 + 338074^2 .

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 121022130101 - 226 = 120955021237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022130121) 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, 7263770 + ... + 7280411.

It is an arithmetic number, because the mean of its divisors is an integer number (15511370103).

Almost surely, 2121022130101 is an apocalyptic number.

It is an amenable number.

121022130101 is a deficient number, since it is larger than the sum of its proper divisors (3068830723).

121022130101 is a wasteful number, since it uses less digits than its factorization.

121022130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14544391.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121022130101 its reverse (101031220121), we get a palindrome (222053350222).

The spelling of 121022130101 in words is "one hundred twenty-one billion, twenty-two million, one hundred thirty thousand, one hundred one".

Divisors: 1 53 157 8321 14544181 770841593 2283436417 121022130101