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102021201101 = 268338025047
BaseRepresentation
bin101111100000011101…
…1111111110011001101
3100202100000212222220202
41133000323333303031
53132414411413401
6114511244223245
710241115621041
oct1370073776315
9322300788822
10102021201101
113a2a3343436
121793283ab25
13980b49ab21
144d1b678021
1529c18d906b
hex17c0effccd

102021201101 has 4 divisors (see below), whose sum is σ = 102059228832. Its totient is φ = 101983173372.

The previous prime is 102021201077. The next prime is 102021201133. The reversal of 102021201101 is 101102120201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102021201101 - 234 = 84841331917 is a prime.

It is a super-2 number, since 2×1020212011012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021201151) 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, 19009841 + ... + 19015206.

It is an arithmetic number, because the mean of its divisors is an integer number (25514807208).

Almost surely, 2102021201101 is an apocalyptic number.

It is an amenable number.

102021201101 is a deficient number, since it is larger than the sum of its proper divisors (38027731).

102021201101 is an equidigital number, since it uses as much as digits as its factorization.

102021201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38027730.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102021201101 its reverse (101102120201), we get a palindrome (203123321302).

The spelling of 102021201101 in words is "one hundred two billion, twenty-one million, two hundred one thousand, one hundred one".

Divisors: 1 2683 38025047 102021201101