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12121220200002 = 233754600090991
BaseRepresentation
bin1011000001100011000100…
…0001100011011001000010
31120220202222200021022000120
42300120301001203121002
53042043224332400002
641440224531401110
72360505064504224
oct260306101433102
946822880238016
1012121220200002
113953642892281
121439210153196
1369c045621894
142dc954dd2414
1516047a0a1cbc
hexb0631063642

12121220200002 has 16 divisors (see below), whose sum is σ = 24897641492352. Its totient is φ = 3931206551280.

The previous prime is 12121220199983. The next prime is 12121220200021. The reversal of 12121220200002 is 20000202212121.

It is an interprime number because it is at equal distance from previous prime (12121220199983) and next prime (12121220200021).

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, 27300045274 + ... + 27300045717.

It is an arithmetic number, because the mean of its divisors is an integer number (1556102593272).

Almost surely, 212121220200002 is an apocalyptic number.

12121220200002 is an abundant number, since it is smaller than the sum of its proper divisors (12776421292350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121220200002 is a wasteful number, since it uses less digits than its factorization.

12121220200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54600091033.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12121220200002 its reverse (20000202212121), we get a palindrome (32121422412123).

The spelling of 12121220200002 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, two hundred thousand, two".

Divisors: 1 2 3 6 37 74 111 222 54600090991 109200181982 163800272973 327600545946 2020203366667 4040406733334 6060610100001 12121220200002