121121284 has 12 divisors (see below), whose sum is σ = 219271500. Its totient is φ = 58472288.

The previous prime is 121121269. The next prime is 121121293. The reversal of 121121284 is 482121121.

It can be written as a sum of positive squares in 2 ways, for example, as 93663684 + 27457600 = 9678^2 + 5240^2 .

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, 521959 + ... + 522190.

It is an arithmetic number, because the mean of its divisors is an integer number (18272625).

Almost surely, 2^121121284 is an apocalyptic number.

It is an amenable number.

121121284 is a deficient number, since it is larger than the sum of its proper divisors (98150216).

121121284 is a wasteful number, since it uses less digits than its factorization.

121121284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044182 (or 1044180 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

The square root of 121121284 is about 11005.5115283207. The cubic root of 121121284 is about 494.7739456889.

The spelling of 121121284 in words is "one hundred twenty-one million, one hundred twenty-one thousand, two hundred eighty-four".