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121210120220002 = 21127691198965401
BaseRepresentation
bin11011100011110101101110…
…001010001010110101100010
3120220011120111200110120212221
4123203311232022022311202
5111341401311234020002
61105443054400541254
734350066526300612
oct3343655612126542
9526146450416787
10121210120220002
1135691a17a17390
121171740002182a
1352830b05a4c28
1421d085b692a42
15e02e47a49c37
hex6e3d6e28ad62

121210120220002 has 16 divisors (see below), whose sum is σ = 198350996838624. Its totient is φ = 55093519260000.

The previous prime is 121210120219973. The next prime is 121210120220027. The reversal of 121210120220002 is 200022021012121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98873499 + ... + 100091902.

It is an arithmetic number, because the mean of its divisors is an integer number (12396937302414).

Almost surely, 2121210120220002 is an apocalyptic number.

121210120220002 is a deficient number, since it is larger than the sum of its proper divisors (77140876618622).

121210120220002 is a wasteful number, since it uses less digits than its factorization.

121210120220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198993105.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121210120220002 its reverse (200022021012121), we get a palindrome (321232141232123).

The spelling of 121210120220002 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred twenty million, two hundred twenty thousand, two".

Divisors: 1 2 11 22 27691 55382 304601 609202 198965401 397930802 2188619411 4377238822 5509550919091 11019101838182 60605060110001 121210120220002