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102212202012122 = 2115901440946161
BaseRepresentation
bin10111001111011000100001…
…111111100001110111011010
3111101220101120002200111122002
4113033120201333201313122
5101344121042203341442
61001215345401201002
730346405436035556
oct2717304177416732
9441811502614562
10102212202012122
112a627a514074a4
12b5694ab790162
1345057529710a7
141b35150148866
15bc3b92097732
hex5cf621fe1dda

102212202012122 has 8 divisors (see below), whose sum is σ = 153319626204372. Its totient is φ = 51105659944000.

The previous prime is 102212202012103. The next prime is 102212202012127. The reversal of 102212202012122 is 221210202212201.

It can be written as a sum of positive squares in 2 ways, for example, as 95803005985801 + 6409196026321 = 9787901^2 + 2531639^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 102212202012094 and 102212202012103.

It is not an unprimeable number, because it can be changed into a prime (102212202012127) 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, 220241279 + ... + 220704882.

Almost surely, 2102212202012122 is an apocalyptic number.

102212202012122 is a deficient number, since it is larger than the sum of its proper divisors (51107424192250).

102212202012122 is a wasteful number, since it uses less digits than its factorization.

102212202012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441062064.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102212202012122 its reverse (221210202212201), we get a palindrome (323422404224323).

The spelling of 102212202012122 in words is "one hundred two trillion, two hundred twelve billion, two hundred two million, twelve thousand, one hundred twenty-two".

Divisors: 1 2 115901 231802 440946161 881892322 51106101006061 102212202012122