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122120010000001 = 1310193008385377
BaseRepresentation
bin11011110001000101000111…
…110100001110011010000001
3121000101120002110121112211101
4123301011013310032122001
5112001303240030000001
61111421054052414401
734502610455644156
oct3361050764163201
9530346073545741
10122120010000001
1135a02894a8a282
1211843814317401
13531ab37c69c60
1422228d630a22d
15e1b94d411a01
hex6f1147d0e681

122120010000001 has 8 divisors (see below), whose sum is σ = 132815974319784. Its totient is φ = 111610062451200.

The previous prime is 122120009999993. The next prime is 122120010000019. The reversal of 122120010000001 is 100000010021221.

It can be written as a sum of positive squares in 4 ways, for example, as 41188413552400 + 80931596447601 = 6417820^2 + 8996199^2 .

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 122120010000001 - 23 = 122120009999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120010000061) 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, 46504191376 + ... + 46504194001.

It is an arithmetic number, because the mean of its divisors is an integer number (16601996789973).

Almost surely, 2122120010000001 is an apocalyptic number.

It is an amenable number.

122120010000001 is a deficient number, since it is larger than the sum of its proper divisors (10695964319783).

122120010000001 is a wasteful number, since it uses less digits than its factorization.

122120010000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93008385491.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122120010000001 its reverse (100000010021221), we get a palindrome (222120020021222).

The spelling of 122120010000001 in words is "one hundred twenty-two trillion, one hundred twenty billion, ten million, one", and thus it is an aban number.

Divisors: 1 13 101 1313 93008385377 1209109009901 9393846923077 122120010000001