121001412 has 24 divisors (see below), whose sum is σ = 322670656. Its totient is φ = 34571808.

The previous prime is 121001411. The next prime is 121001429. The reversal of 121001412 is 214100121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121001411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720163 + ... + 720330.

Almost surely, 2^121001412 is an apocalyptic number.

121001412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001412 is an abundant number, since it is smaller than the sum of its proper divisors (201669244).

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

121001412 is a wasteful number, since it uses less digits than its factorization.

121001412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440507 (or 1440505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121001412 is about 11000.0641816309. The cubic root of 121001412 is about 494.6106682500.

Adding to 121001412 its reverse (214100121), we get a palindrome (335101533).

The spelling of 121001412 in words is "one hundred twenty-one million, one thousand, four hundred twelve".