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101212020112001 = 285205135487451
BaseRepresentation
bin10111000000110101000010…
…100000010111101010000001
3111021100202220200222121002112
4113000311002200113222001
5101231224204122041001
6555132054332025105
730214220132125511
oct2700650240275201
9437322820877075
10101212020112001
112a28185a841327
12b427698902195
134462338ab7856
141adc98b8b1841
15ba7b5489ecbb
hex5c0d42817a81

101212020112001 has 4 divisors (see below), whose sum is σ = 101212058451504. Its totient is φ = 101211981772500.

The previous prime is 101212020111997. The next prime is 101212020112009. The reversal of 101212020112001 is 100211020212101.

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 101212020112001 - 22 = 101212020111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101212020112009) 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, 14891675 + ... + 20595776.

It is an arithmetic number, because the mean of its divisors is an integer number (25303014612876).

Almost surely, 2101212020112001 is an apocalyptic number.

It is an amenable number.

101212020112001 is a deficient number, since it is larger than the sum of its proper divisors (38339503).

101212020112001 is an equidigital number, since it uses as much as digits as its factorization.

101212020112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38339502.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101212020112001 its reverse (100211020212101), we get a palindrome (201423040324102).

The spelling of 101212020112001 in words is "one hundred one trillion, two hundred twelve billion, twenty million, one hundred twelve thousand, one".

Divisors: 1 2852051 35487451 101212020112001