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10201211020001 = 61167232967541
BaseRepresentation
bin1001010001110010011110…
…0011110010001011100001
31100010020002221021010110102
42110130213203302023201
52314114040010120001
633410212135312145
72102004342655001
oct224344743621341
940106087233412
1010201211020001
1132833447484a1
121189090b1b655
1358cc7c329a81
14273a53dac001
1512a55487ce6b
hex947278f22e1

10201211020001 has 4 divisors (see below), whose sum is σ = 10368443987604. Its totient is φ = 10033978052400.

The previous prime is 10201211019917. The next prime is 10201211020073. The reversal of 10201211020001 is 10002011210201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2856032400400 + 7345178619601 = 1689980^2 + 2710199^2 .

It is a cyclic number.

It is not a de Polignac number, because 10201211020001 - 222 = 10201206825697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10201211020081) 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, 83616483710 + ... + 83616483831.

It is an arithmetic number, because the mean of its divisors is an integer number (2592110996901).

Almost surely, 210201211020001 is an apocalyptic number.

It is an amenable number.

10201211020001 is a deficient number, since it is larger than the sum of its proper divisors (167232967603).

10201211020001 is an equidigital number, since it uses as much as digits as its factorization.

10201211020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167232967602.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10201211020001 its reverse (10002011210201), we get a palindrome (20203222230202).

The spelling of 10201211020001 in words is "ten trillion, two hundred one billion, two hundred eleven million, twenty thousand, one".

Divisors: 1 61 167232967541 10201211020001