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12121021120102 = 221517281661503
BaseRepresentation
bin1011000001100010010100…
…1010000111111001100110
31120220202110210122222201221
42300120211022013321212
53042042322401320402
641440153100410554
72360500126401316
oct260304512077146
946822423588657
1012121021120102
113953550478634
121439175546a5a
1369c0132ca31b
142dc9367ad446
1516046787a337
hexb0625287e66

12121021120102 has 8 divisors (see below), whose sum is σ = 18182376729216. Its totient is φ = 6060228877032.

The previous prime is 12121021120073. The next prime is 12121021120121. The reversal of 12121021120102 is 20102112012121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140787718 + ... + 140873785.

It is an arithmetic number, because the mean of its divisors is an integer number (2272797091152).

Almost surely, 212121021120102 is an apocalyptic number.

12121021120102 is a deficient number, since it is larger than the sum of its proper divisors (6061355609114).

12121021120102 is a wasteful number, since it uses less digits than its factorization.

12121021120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281683022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12121021120102 its reverse (20102112012121), we get a palindrome (32223133132223).

The spelling of 12121021120102 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty thousand, one hundred two".

Divisors: 1 2 21517 43034 281661503 563323006 6060510560051 12121021120102