201121426 has 8 divisors (see below), whose sum is σ = 329107824. Its totient is φ = 91418820.

The previous prime is 201121423. The next prime is 201121429. The reversal of 201121426 is 624121102.

It is an interprime number because it is at equal distance from previous prime (201121423) and next prime (201121429).

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

It is not an unprimeable number, because it can be changed into a prime (201121421) 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, 4570920 + ... + 4570963.

It is an arithmetic number, because the mean of its divisors is an integer number (41138478).

Almost surely, 2^201121426 is an apocalyptic number.

201121426 is a deficient number, since it is larger than the sum of its proper divisors (127986398).

201121426 is a wasteful number, since it uses less digits than its factorization.

201121426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141896.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 201121426 is about 14181.7285970364. The cubic root of 201121426 is about 585.8945342470.

Adding to 201121426 its reverse (624121102), we get a palindrome (825242528).

The spelling of 201121426 in words is "two hundred one million, one hundred twenty-one thousand, four hundred twenty-six".