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121220122010102 = 2372716262425813
BaseRepresentation
bin11011100011111111000010…
…010011111110000111110110
3120220012112022201121011120022
4123203333002103332013312
5111342032302213310402
61105451431050005142
734350602425146533
oct3343770223760766
9526175281534508
10121220122010102
113569618a744315
12117193317167b2
13528401576b11b
1421d1129b5dd8a
15e03330b5d2a2
hex6e3fc24fe1f6

121220122010102 has 8 divisors (see below), whose sum is σ = 181878970303776. Its totient is φ = 60593798575512.

The previous prime is 121220122009997. The next prime is 121220122010107. The reversal of 121220122010102 is 201010221022121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220122010107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8131205453 + ... + 8131220360.

It is an arithmetic number, because the mean of its divisors is an integer number (22734871287972).

Almost surely, 2121220122010102 is an apocalyptic number.

121220122010102 is a deficient number, since it is larger than the sum of its proper divisors (60658848293674).

121220122010102 is a wasteful number, since it uses less digits than its factorization.

121220122010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16262429542.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220122010102 its reverse (201010221022121), we get a palindrome (322230343032223).

The spelling of 121220122010102 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, ten thousand, one hundred two".

Divisors: 1 2 3727 7454 16262425813 32524851626 60610061005051 121220122010102