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102022122101 = 115498833849
BaseRepresentation
bin101111100000011111…
…1100000101001110101
3100202100002121210021212
41133000333200221311
53132420130401401
6114511320051205
710241126505134
oct1370077405165
9322302553255
10102022122101
113a2a3912399
1217933003b05
13980b7310b3
144d1b83791b
1529c1a1bdbb
hex17c0fe0a75

102022122101 has 4 divisors (see below), whose sum is σ = 102030967500. Its totient is φ = 102013276704.

The previous prime is 102022122071. The next prime is 102022122133. The reversal of 102022122101 is 101221220201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101221220201 = 472153642983.

It can be written as a sum of positive squares in 2 ways, for example, as 98218933201 + 3803188900 = 313399^2 + 61670^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022122101 - 218 = 102021859957 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 (102022122701) 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, 4405376 + ... + 4428473.

It is an arithmetic number, because the mean of its divisors is an integer number (25507741875).

Almost surely, 2102022122101 is an apocalyptic number.

It is an amenable number.

102022122101 is a deficient number, since it is larger than the sum of its proper divisors (8845399).

102022122101 is an equidigital number, since it uses as much as digits as its factorization.

102022122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8845398.

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

Adding to 102022122101 its reverse (101221220201), we get a palindrome (203243342302).

The spelling of 102022122101 in words is "one hundred two billion, twenty-two million, one hundred twenty-two thousand, one hundred one".

Divisors: 1 11549 8833849 102022122101