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121222414 = 260611207
BaseRepresentation
bin1110011100110…
…11010100001110
322110002201220001
413032123110032
5222013104124
620010114514
73001242055
oct716332416
9273081801
10121222414
1162477215
123471ba3a
131c164451
141215739c
15a997b44
hex739b50e

121222414 has 4 divisors (see below), whose sum is σ = 181833624. Its totient is φ = 60611206.

The previous prime is 121222399. The next prime is 121222417. The reversal of 121222414 is 414222121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414222121 = 553174891.

It is a junction number, because it is equal to n+sod(n) for n = 121222391 and 121222400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305602 + ... + 30305605.

It is an arithmetic number, because the mean of its divisors is an integer number (45458406).

Almost surely, 2121222414 is an apocalyptic number.

121222414 is a deficient number, since it is larger than the sum of its proper divisors (60611210).

121222414 is an equidigital number, since it uses as much as digits as its factorization.

121222414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60611209.

The product of its digits is 256, while the sum is 19.

The square root of 121222414 is about 11010.1050857837. The cubic root of 121222414 is about 494.9116109226.

Adding to 121222414 its reverse (414222121), we get a palindrome (535444535).

The spelling of 121222414 in words is "one hundred twenty-one million, two hundred twenty-two thousand, four hundred fourteen".

Divisors: 1 2 60611207 121222414