Search a number
-
+
21101101022 = 210550550511
BaseRepresentation
bin10011101001101110…
…010011111111011110
32000110120102222220002
4103221232103333132
5321203340213042
613405501454302
71344622253651
oct235156237736
960416388802
1021101101022
118a49026571
12410a871392
131cb38527c1
14104262d898
1583776d132
hex4e9b93fde

21101101022 has 4 divisors (see below), whose sum is σ = 31651651536. Its totient is φ = 10550550510.

The previous prime is 21101101009. The next prime is 21101101027. The reversal of 21101101022 is 22010110112.

Adding to 21101101022 its reverse (22010110112), we get a palindrome (43111211134).

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

It is a junction number, because it is equal to n+sod(n) for n = 21101100994 and 21101101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101101027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275275254 + ... + 5275275257.

It is an arithmetic number, because the mean of its divisors is an integer number (7912912884).

Almost surely, 221101101022 is an apocalyptic number.

21101101022 is a deficient number, since it is larger than the sum of its proper divisors (10550550514).

21101101022 is a wasteful number, since it uses less digits than its factorization.

21101101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550550513.

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

The spelling of 21101101022 in words is "twenty-one billion, one hundred one million, one hundred one thousand, twenty-two".

Divisors: 1 2 10550550511 21101101022