121210630 has 8 divisors (see below), whose sum is σ = 218179152. Its totient is φ = 48484248.

The previous prime is 121210619. The next prime is 121210657. The reversal of 121210630 is 36012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060522 + ... + 6060541.

It is an arithmetic number, because the mean of its divisors is an integer number (27272394).

Almost surely, 2^121210630 is an apocalyptic number.

121210630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210630 is a deficient number, since it is larger than the sum of its proper divisors (96968522).

121210630 is a wasteful number, since it uses less digits than its factorization.

121210630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121070.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121210630 is about 11009.5699280217. The cubic root of 121210630 is about 494.8955736590.

Adding to 121210630 its reverse (36012121), we get a palindrome (157222751).

It can be divided in two parts, 121 and 210630, that multiplied together give a triangular number (25486230 = T₇₁₃₉).

The spelling of 121210630 in words is "one hundred twenty-one million, two hundred ten thousand, six hundred thirty".