Search a number
-
+
1210022212 = 22743215079
BaseRepresentation
bin100100000011111…
…0111100101000100
310010022212111102111
41020013313211010
54434231202322
6320022550404
741662006360
oct11007674504
93108774374
101210022212
11571031663
12299298404
131638c3199
14b69bc2a0
157136a177
hex481f7944

1210022212 has 12 divisors (see below), whose sum is σ = 2420044480. Its totient is φ = 518580936.

The previous prime is 1210022183. The next prime is 1210022213. The reversal of 1210022212 is 2122200121.

It is a happy number.

1210022212 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1210022192 and 1210022201.

It is not an unprimeable number, because it can be changed into a prime (1210022213) 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, 21607512 + ... + 21607567.

Almost surely, 21210022212 is an apocalyptic number.

It is an amenable number.

1210022212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210022212 is a wasteful number, since it uses less digits than its factorization.

1210022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43215090 (or 43215088 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1210022212 is about 34785.3735354387. The cubic root of 1210022212 is about 1065.6087571556.

Adding to 1210022212 its reverse (2122200121), we get a palindrome (3332222333).

The spelling of 1210022212 in words is "one billion, two hundred ten million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 43215079 86430158 172860316 302505553 605011106 1210022212