121111245 has 48 divisors (see below), whose sum is σ = 216283392. Its totient is φ = 62663040.

The previous prime is 121111231. The next prime is 121111259. The reversal of 121111245 is 542111121.

121111245 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (121111231) and next prime (121111259).

It is not a de Polignac number, because 121111245 - 2⁹ = 121110733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 365730 + ... + 366060.

It is an arithmetic number, because the mean of its divisors is an integer number (4505904).

Almost surely, 2^121111245 is an apocalyptic number.

121111245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121111245 is a deficient number, since it is larger than the sum of its proper divisors (95172147).

121111245 is a wasteful number, since it uses less digits than its factorization.

121111245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 559 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 121111245 is about 11005.0554292107. The cubic root of 121111245 is about 494.7602757191.

Adding to 121111245 its reverse (542111121), we get a palindrome (663222366).

The spelling of 121111245 in words is "one hundred twenty-one million, one hundred eleven thousand, two hundred forty-five".