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122012120020001 = 179681631955419
BaseRepresentation
bin11011101111100000101001…
…000100100111010000100001
3121000000020121102120200202012
4123233200221010213100201
5111443021310211120001
61111255332200002305
734462041035152421
oct3357405104472041
9530006542520665
10122012120020001
113597105a9a1452
1211826924160395
1353109029588c3
14221b5bd460481
15e18c366b02bb
hex6ef829127421

122012120020001 has 4 divisors (see below), whose sum is σ = 122693751975600. Its totient is φ = 121330488064404.

The previous prime is 122012120019989. The next prime is 122012120020027. The reversal of 122012120020001 is 100020021210221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122012120020001 - 214 = 122012120003617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122012120320001) 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, 340815977531 + ... + 340815977888.

It is an arithmetic number, because the mean of its divisors is an integer number (30673437993900).

Almost surely, 2122012120020001 is an apocalyptic number.

It is an amenable number.

122012120020001 is a deficient number, since it is larger than the sum of its proper divisors (681631955599).

122012120020001 is an equidigital number, since it uses as much as digits as its factorization.

122012120020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681631955598.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122012120020001 its reverse (100020021210221), we get a palindrome (222032141230222).

The spelling of 122012120020001 in words is "one hundred twenty-two trillion, twelve billion, one hundred twenty million, twenty thousand, one".

Divisors: 1 179 681631955419 122012120020001