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20122122 = 233353687
BaseRepresentation
bin100110011000…
…0101000001010
31101212022100210
41030300220022
520122401442
61555141550
7333015036
oct114605012
941768323
1020122122
11103a4059
1268a48b6
134226ba7
14295b1c6
151b7719c
hex1330a0a

20122122 has 8 divisors (see below), whose sum is σ = 40244256. Its totient is φ = 6707372.

The previous prime is 20122093. The next prime is 20122133. The reversal of 20122122 is 22122102.

Adding to 20122122 its reverse (22122102), we get a palindrome (42244224).

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 = 20122098 and 20122107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676838 + ... + 1676849.

It is an arithmetic number, because the mean of its divisors is an integer number (5030532).

Almost surely, 220122122 is an apocalyptic number.

20122122 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.

20122122 is a wasteful number, since it uses less digits than its factorization.

20122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353692.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20122122 is about 4485.7688304236. The cubic root of 20122122 is about 271.9931244658.

The spelling of 20122122 in words is "twenty million, one hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 3353687 6707374 10061061 20122122