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1201202102201 = 6161013227641
BaseRepresentation
bin10001011110101101001…
…110010111111110111001
311020211111211200020012012
4101132231032113332321
5124140030214232301
62315454041455305
7152532623255123
oct21365516277671
94224454606165
101201202102201
114234772a9292
121749741a1535
1389371666c9a
14421d2044213
15213a54ddebb
hex117ad397fb9

1201202102201 has 8 divisors (see below), whose sum is σ = 1221094432008. Its totient is φ = 1181316240000.

The previous prime is 1201202102161. The next prime is 1201202102203. The reversal of 1201202102201 is 1022012021021.

It can be written as a sum of positive squares in 4 ways, for example, as 301976626576 + 899225475625 = 549524^2 + 948275^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-1201202102201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201202102203) 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, 1241660 + ... + 1985981.

It is an arithmetic number, because the mean of its divisors is an integer number (152636804001).

Almost surely, 21201202102201 is an apocalyptic number.

It is an amenable number.

1201202102201 is a deficient number, since it is larger than the sum of its proper divisors (19892329807).

1201202102201 is an equidigital number, since it uses as much as digits as its factorization.

1201202102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233803.

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

Adding to 1201202102201 its reverse (1022012021021), we get a palindrome (2223214123222).

The spelling of 1201202102201 in words is "one trillion, two hundred one billion, two hundred two million, one hundred two thousand, two hundred one".

Divisors: 1 61 6101 372161 3227641 196886101 19691837741 1201202102201