Search a number
-
+
1201010212021 = 43127219924961
BaseRepresentation
bin10001011110100001110…
…010010111110010110101
311020211000110121012100111
4101132201302113302311
5124134132103241041
62315423024543021
7152525103235414
oct21364162276265
94224013535314
101201010212021
11423388a55364
1217491ba81a71
138934098c0b9
14421b477347b
1521393737981
hex117a1c97cb5

1201010212021 has 8 divisors (see below), whose sum is σ = 1238617385984. Its totient is φ = 1163842888320.

The previous prime is 1201010212007. The next prime is 1201010212033. The reversal of 1201010212021 is 1202120101021.

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 1201010212021 - 27 = 1201010211893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201010211992 and 1201010212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201010212121) 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, 109957020 + ... + 109967941.

It is an arithmetic number, because the mean of its divisors is an integer number (154827173248).

Almost surely, 21201010212021 is an apocalyptic number.

It is an amenable number.

1201010212021 is a deficient number, since it is larger than the sum of its proper divisors (37607173963).

1201010212021 is a wasteful number, since it uses less digits than its factorization.

1201010212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219925131.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201010212021 its reverse (1202120101021), we get a palindrome (2403130313042).

The spelling of 1201010212021 in words is "one trillion, two hundred one billion, ten million, two hundred twelve thousand, twenty-one".

Divisors: 1 43 127 5461 219924961 9456773323 27930470047 1201010212021