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10011001121210 = 251001100112121
BaseRepresentation
bin1001000110101101111000…
…1010100110100110111010
31022110001010212210010002002
42101223132022212212322
52303010012241334320
633142553533141002
72052161640340055
oct221533612464672
938401125703062
1010011001121210
11320a707168231
12115824802a762
135780583862bb
1426876c211a9c
15125620b54675
hex91ade2a69ba

10011001121210 has 8 divisors (see below), whose sum is σ = 18019802018196. Its totient is φ = 4004400448480.

The previous prime is 10011001121203. The next prime is 10011001121213. The reversal of 10011001121210 is 1212110011001.

It can be written as a sum of positive squares in 2 ways, for example, as 9629397178129 + 381603943081 = 3103127^2 + 617741^2 .

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

It is a super-3 number, since 3×100110011212103 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 10011001121191 and 10011001121200.

It is not an unprimeable number, because it can be changed into a prime (10011001121213) 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 in 3 ways as a sum of consecutive naturals, for example, 500550056051 + ... + 500550056070.

Almost surely, 210011001121210 is an apocalyptic number.

10011001121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10011001121210 is a deficient number, since it is larger than the sum of its proper divisors (8008800896986).

10011001121210 is a wasteful number, since it uses less digits than its factorization.

10011001121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001100112128.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10011001121210 its reverse (1212110011001), we get a palindrome (11223111132211).

The spelling of 10011001121210 in words is "ten trillion, eleven billion, one million, one hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 5 10 1001100112121 2002200224242 5005500560605 10011001121210