121820058 has 64 divisors (see below), whose sum is σ = 292752000. Its totient is φ = 37418112.

The previous prime is 121820047. The next prime is 121820063. The reversal of 121820058 is 850028121.

It is a super-2 number, since 2×121820058² = 29680253062246728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36358 + ... + 39566.

It is an arithmetic number, because the mean of its divisors is an integer number (4574250).

Almost surely, 2^121820058 is an apocalyptic number.

121820058 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121820058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146376000).

121820058 is an abundant number, since it is smaller than the sum of its proper divisors (170931942).

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

121820058 is a wasteful number, since it uses less digits than its factorization.

121820058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 121820058 is about 11037.2124198096. The cubic root of 121820058 is about 495.7236065240.

Adding to 121820058 its reverse (850028121), we get a palindrome (971848179).

The spelling of 121820058 in words is "one hundred twenty-one million, eight hundred twenty thousand, fifty-eight".