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121213202230 = 2512121320223
BaseRepresentation
bin111000011100011011…
…1101010111100110110
3102120212120000200002101
41300320313222330312
53441221034432410
6131403511332314
711520530135101
oct1607067527466
9376776020071
10121213202230
114745176899a
121b5aa08109a
13b579651b03
145c1c511738
15324674cd3a
hex1c38deaf36

121213202230 has 8 divisors (see below), whose sum is σ = 218183764032. Its totient is φ = 48485280888.

The previous prime is 121213202153. The next prime is 121213202233. The reversal of 121213202230 is 32202312121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121213202198 and 121213202207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213202233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060660102 + ... + 6060660121.

It is an arithmetic number, because the mean of its divisors is an integer number (27272970504).

Almost surely, 2121213202230 is an apocalyptic number.

121213202230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121213202230 is a deficient number, since it is larger than the sum of its proper divisors (96970561802).

121213202230 is a wasteful number, since it uses less digits than its factorization.

121213202230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121320230.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121213202230 its reverse (32202312121), we get a palindrome (153415514351).

The spelling of 121213202230 in words is "one hundred twenty-one billion, two hundred thirteen million, two hundred two thousand, two hundred thirty".

Divisors: 1 2 5 10 12121320223 24242640446 60606601115 121213202230