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10220121001 = 23479454321
BaseRepresentation
bin10011000010010101…
…01010101110101001
3222101020221221101001
421201022222232221
5131412322333001
64410044355001
7511156411066
oct114112525651
928336857331
1010220121001
114374aa01a2
121b92845a61
13c6b49ac9c
146cd4a1c6d
153ec38e001
hex2612aaba9

10220121001 has 8 divisors (see below), whose sum is σ = 10891378944. Its totient is φ = 9567771840.

The previous prime is 10220120983. The next prime is 10220121007. The reversal of 10220121001 is 10012102201.

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

It is not a de Polignac number, because 10220121001 - 25 = 10220120969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220121007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4726080 + ... + 4728241.

It is an arithmetic number, because the mean of its divisors is an integer number (1361422368).

Almost surely, 210220121001 is an apocalyptic number.

It is an amenable number.

10220121001 is a deficient number, since it is larger than the sum of its proper divisors (671257943).

10220121001 is an equidigital number, since it uses as much as digits as its factorization.

10220121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454391.

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

Adding to 10220121001 its reverse (10012102201), we get a palindrome (20232223202).

The spelling of 10220121001 in words is "ten billion, two hundred twenty million, one hundred twenty-one thousand, one".

Divisors: 1 23 47 1081 9454321 217449383 444353087 10220121001