121401024 has 28 divisors (see below), whose sum is σ = 321207384. Its totient is φ = 40466944.

The previous prime is 121401019. The next prime is 121401037. The reversal of 121401024 is 420104121.

It is a junction number, because it is equal to n+sod(n) for n = 121400994 and 121401012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315957 + ... + 316340.

Almost surely, 2^121401024 is an apocalyptic number.

It is an amenable number.

121401024 is an abundant number, since it is smaller than the sum of its proper divisors (199806360).

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

121401024 is an equidigital number, since it uses as much as digits as its factorization.

121401024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632312 (or 632302 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 121401024 is about 11018.2132852836. The cubic root of 121401024 is about 495.1545604479.

Adding to 121401024 its reverse (420104121), we get a palindrome (541505145).

The spelling of 121401024 in words is "one hundred twenty-one million, four hundred one thousand, twenty-four".