121631226 has 32 divisors (see below), whose sum is σ = 258043968. Its totient is φ = 38088960.

The previous prime is 121631221. The next prime is 121631231. The reversal of 121631226 is 622136121.

It is an interprime number because it is at equal distance from previous prime (121631221) and next prime (121631231).

It is a super-3 number, since 3×121631226³ (a number of 25 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 121631196 and 121631205.

It is not an unprimeable number, because it can be changed into a prime (121631221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110736 + ... + 111828.

It is an arithmetic number, because the mean of its divisors is an integer number (8063874).

Almost surely, 2^121631226 is an apocalyptic number.

121631226 is an abundant number, since it is smaller than the sum of its proper divisors (136412742).

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

121631226 is a wasteful number, since it uses less digits than its factorization.

121631226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206.

The product of its digits is 864, while the sum is 24.

The square root of 121631226 is about 11028.6547683750. The cubic root of 121631226 is about 495.4673354017.

Adding to 121631226 its reverse (622136121), we get a palindrome (743767347).

The spelling of 121631226 in words is "one hundred twenty-one million, six hundred thirty-one thousand, two hundred twenty-six".