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10021000202221 = 23967362301443
BaseRepresentation
bin1001000111010011001000…
…1010000100011111101101
31022110222221201211001120211
42101310302022010133231
52303141002022432341
633151330044142421
72052664504203541
oct221646212043755
938428851731524
1010021000202221
113213978404848
12115a178837a11
13578c8cb11398
1426903a1b5a21
15125a088d0181
hex91d322847ed

10021000202221 has 8 divisors (see below), whose sum is σ = 10077881581440. Its totient is φ = 9964243427712.

The previous prime is 10021000202201. The next prime is 10021000202243. The reversal of 10021000202221 is 12220200012001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10021000202221 - 27 = 10021000202093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021000202201) 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, 30989875 + ... + 31311568.

It is an arithmetic number, because the mean of its divisors is an integer number (1259735197680).

Almost surely, 210021000202221 is an apocalyptic number.

It is an amenable number.

10021000202221 is a deficient number, since it is larger than the sum of its proper divisors (56881379219).

10021000202221 is an equidigital number, since it uses as much as digits as its factorization.

10021000202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62302355.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10021000202221 its reverse (12220200012001), we get a palindrome (22241200214222).

The spelling of 10021000202221 in words is "ten trillion, twenty-one billion, two hundred two thousand, two hundred twenty-one".

Divisors: 1 239 673 160847 62301443 14890044877 41928871139 10021000202221