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121422232444 = 22397106971527
BaseRepresentation
bin111000100010101010…
…1000011101101111100
3102121102010100111122011
41301011111003231330
53442133042414234
6131440335501004
711525645642452
oct1610525035574
9377363314564
10121422232444
1147549759437
121b648087764
13b5b0a4b426
145c3c1a49d2
153259c8cb64
hex1c45543b7c

121422232444 has 24 divisors (see below), whose sum is σ = 213226398560. Its totient is φ = 60500696256.

The previous prime is 121422232423. The next prime is 121422232493. The reversal of 121422232444 is 444232224121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661809 + ... + 1733335.

Almost surely, 2121422232444 is an apocalyptic number.

It is an amenable number.

121422232444 is a deficient number, since it is larger than the sum of its proper divisors (91804166116).

121422232444 is a wasteful number, since it uses less digits than its factorization.

121422232444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72997 (or 72995 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

Adding to 121422232444 its reverse (444232224121), we get a palindrome (565654456565).

The spelling of 121422232444 in words is "one hundred twenty-one billion, four hundred twenty-two million, two hundred thirty-two thousand, four hundred forty-four".

Divisors: 1 2 4 397 794 1069 1588 2138 4276 71527 143054 286108 424393 848786 1697572 28396219 56792438 76462363 113584876 152924726 305849452 30355558111 60711116222 121422232444