Search a number
BaseRepresentation
bin111111001101101…
…1001100111010110
312110211020122200112
41332123121213112
513321001041042
6550250443022
7103364104031
oct17633314726
95424218615
102121112022
11999348947
124b2433472
1327a5a0493
141619c4018
15c6337982
hex7e6d99d6

2121112022 has 8 divisors (see below), whose sum is σ = 3182115456. Its totient is φ = 1060406872.

The previous prime is 2121112013. The next prime is 2121112027. The reversal of 2121112022 is 2202111212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2121111988 and 2121112006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121112027) 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, 55853 + ... + 85800.

It is an arithmetic number, because the mean of its divisors is an integer number (397764432).

Almost surely, 22121112022 is an apocalyptic number.

2121112022 is a deficient number, since it is larger than the sum of its proper divisors (1061003434).

2121112022 is a wasteful number, since it uses less digits than its factorization.

2121112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149142.

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

The square root of 2121112022 is about 46055.5319369997. The cubic root of 2121112022 is about 1284.8562314489.

Adding to 2121112022 its reverse (2202111212), we get a palindrome (4323223234).

It can be divided in two parts, 21211 and 12022, that added together give a palindrome (33233).

The spelling of 2121112022 in words is "two billion, one hundred twenty-one million, one hundred twelve thousand, twenty-two".