121449329211 has 40 divisors (see below), whose sum is σ = 194016037904. Its totient is φ = 67523803200.

The previous prime is 121449329173. The next prime is 121449329227. The reversal of 121449329211 is 112923944121.

It is a happy number.

It is not a de Polignac number, because 121449329211 - 2¹⁴ = 121449312827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121449329211.

It is not an unprimeable number, because it can be changed into a prime (121449329231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38661 + ... + 494361.

Almost surely, 2^121449329211 is an apocalyptic number.

121449329211 is a deficient number, since it is larger than the sum of its proper divisors (72566708693).

121449329211 is an frugal number, since it uses more digits than its factorization.

121449329211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455769 (or 455748 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The spelling of 121449329211 in words is "one hundred twenty-one billion, four hundred forty-nine million, three hundred twenty-nine thousand, two hundred eleven".