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20101010122 = 230373309353
BaseRepresentation
bin10010101110000111…
…010001001011001010
31220212212121010002101
4102232013101023022
5312131324310442
613122334224014
71311056524024
oct225607211312
956785533071
1020101010122
118585550466
123a8b95500a
131b845b313b
14d8989b014
157c9a6ecb7
hex4ae1d12ca

20101010122 has 8 divisors (see below), whose sum is σ = 30161452356. Its totient is φ = 10047192672.

The previous prime is 20101010107. The next prime is 20101010123. The reversal of 20101010122 is 22101010102.

It can be written as a sum of positive squares in 2 ways, for example, as 19909492201 + 191517921 = 141101^2 + 13839^2 .

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 = 20101010099 and 20101010108.

It is not an unprimeable number, because it can be changed into a prime (20101010123) 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, 1648603 + ... + 1660750.

Almost surely, 220101010122 is an apocalyptic number.

20101010122 is a deficient number, since it is larger than the sum of its proper divisors (10060442234).

20101010122 is a wasteful number, since it uses less digits than its factorization.

20101010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312392.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20101010122 its reverse (22101010102), we get a palindrome (42202020224).

The spelling of 20101010122 in words is "twenty billion, one hundred one million, ten thousand, one hundred twenty-two".

Divisors: 1 2 3037 6074 3309353 6618706 10050505061 20101010122