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121221020201122 = 2102481591431681
BaseRepresentation
bin11011100011111111110111…
…110110010011000010100010
3120220012121122022201000000101
4123203333313312103002202
5111342041122132413442
61105452100133213014
734350633612512332
oct3343776766230242
9526177568630011
10121221020201122
1135696600750546
121171954249116a
1352841298802ba
1421d11b31690c2
15e0338492dcb7
hex6e3ff7d930a2

121221020201122 has 8 divisors (see below), whose sum is σ = 181833304904172. Its totient is φ = 60609918566400.

The previous prime is 121221020201053. The next prime is 121221020201137. The reversal of 121221020201122 is 221102020122121.

It can be written as a sum of positive squares in 2 ways, for example, as 114033800752921 + 7187219448201 = 10678661^2 + 2680899^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 121221020201122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295510879 + ... + 295920802.

Almost surely, 2121221020201122 is an apocalyptic number.

121221020201122 is a deficient number, since it is larger than the sum of its proper divisors (60612284703050).

121221020201122 is a wasteful number, since it uses less digits than its factorization.

121221020201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591534164.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121221020201122 its reverse (221102020122121), we get a palindrome (342323040323243).

The spelling of 121221020201122 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred one thousand, one hundred twenty-two".

Divisors: 1 2 102481 204962 591431681 1182863362 60610510100561 121221020201122