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12121202103120 = 243251113711171203
BaseRepresentation
bin1011000001100010111111…
…1100100001001101010000
31120220202221102012212202200
42300120233330201031100
53042043210214244440
641440223043443200
72360504454622515
oct260305774411520
946822842185680
1012121202103120
113953633651880
121439206086500
1369c041956776
142dc95284130c
151604786c9c30
hexb062ff21350

12121202103120 has 240 divisors, whose sum is σ = 44731824426432. Its totient is φ = 2917024266240.

The previous prime is 12121202103107. The next prime is 12121202103133. The reversal of 12121202103120 is 2130120212121.

12121202103120 is a `hidden beast` number, since 1 + 2 + 121 + 20 + 210 + 312 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12121202103107) and next prime (12121202103133).

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×121212021031202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12121202103093 and 12121202103102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4500562 + ... + 6670641.

Almost surely, 212121202103120 is an apocalyptic number.

12121202103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121202103120 is an abundant number, since it is smaller than the sum of its proper divisors (32610622323312).

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

12121202103120 is a wasteful number, since it uses less digits than its factorization.

12121202103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171370 (or 11171361 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12121202103120 its reverse (2130120212121), we get a palindrome (14251322315241).

The spelling of 12121202103120 in words is "twelve trillion, one hundred twenty-one billion, two hundred two million, one hundred three thousand, one hundred twenty".