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10220401211 = 21794690409
BaseRepresentation
bin10011000010010111…
…01111001000111011
3222101021111011202012
421201023233020323
5131412410314321
64410054400135
7511161656036
oct114113571073
928337434665
1010220401211
114375171779
121b9296004b
13c6b5686a7
146cd53601d
153ec3e705b
hex2612ef23b

10220401211 has 4 divisors (see below), whose sum is σ = 10225093800. Its totient is φ = 10215708624.

The previous prime is 10220401199. The next prime is 10220401237. The reversal of 10220401211 is 11210402201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11210402201 = 91912198479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10220401211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10220461211) 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, 2343026 + ... + 2347383.

It is an arithmetic number, because the mean of its divisors is an integer number (2556273450).

Almost surely, 210220401211 is an apocalyptic number.

10220401211 is a deficient number, since it is larger than the sum of its proper divisors (4692589).

10220401211 is an equidigital number, since it uses as much as digits as its factorization.

10220401211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692588.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10220401211 its reverse (11210402201), we get a palindrome (21430803412).

The spelling of 10220401211 in words is "ten billion, two hundred twenty million, four hundred one thousand, two hundred eleven".

Divisors: 1 2179 4690409 10220401211