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13121222212102 = 29883663827897
BaseRepresentation
bin1011111011110000010111…
…0010011111101000000110
31201110101011112110221120211
42332330011302133220012
53204434230341241402
643523450053150034
72522656055403364
oct276740562375006
951411145427524
1013121222212102
1141a9751961964
12157ab9292b31a
137424311431c4
143350db800634
1517b4a6ab44d7
hexbef05c9fa06

13121222212102 has 8 divisors (see below), whose sum is σ = 19683824831496. Its totient is φ = 6559947268272.

The previous prime is 13121222212081. The next prime is 13121222212103. The reversal of 13121222212102 is 20121222212131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121222212103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331894183 + ... + 331933714.

It is an arithmetic number, because the mean of its divisors is an integer number (2460478103937).

Almost surely, 213121222212102 is an apocalyptic number.

13121222212102 is a deficient number, since it is larger than the sum of its proper divisors (6562602619394).

13121222212102 is an equidigital number, since it uses as much as digits as its factorization.

13121222212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663837782.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 13121222212102 its reverse (20121222212131), we get a palindrome (33242444424233).

The spelling of 13121222212102 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 9883 19766 663827897 1327655794 6560611106051 13121222212102