Search a number
-
+
1202112210101 = 11109282928191
BaseRepresentation
bin10001011111100011011…
…110001010010010110101
311020220212021012111112012
4101133203132022102311
5124143411211210401
62320124232334005
7152564314122665
oct21374336122265
94226767174465
101202112210101
114238a4004880
12174b88b44305
138948808c37a
144227ac721a5
152140a3658bb
hex117e378a4b5

1202112210101 has 4 divisors (see below), whose sum is σ = 1311395138304. Its totient is φ = 1092829281900.

The previous prime is 1202112210083. The next prime is 1202112210113. The reversal of 1202112210101 is 1010122112021.

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 1202112210101 - 218 = 1202111947957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202112210301) 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, 54641464085 + ... + 54641464106.

It is an arithmetic number, because the mean of its divisors is an integer number (327848784576).

Almost surely, 21202112210101 is an apocalyptic number.

1202112210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202112210101 is a deficient number, since it is larger than the sum of its proper divisors (109282928203).

1202112210101 is a wasteful number, since it uses less digits than its factorization.

1202112210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109282928202.

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

Adding to 1202112210101 its reverse (1010122112021), we get a palindrome (2212234322122).

The spelling of 1202112210101 in words is "one trillion, two hundred two billion, one hundred twelve million, two hundred ten thousand, one hundred one".

Divisors: 1 11 109282928191 1202112210101