121213790 has 8 divisors (see below), whose sum is σ = 218184840. Its totient is φ = 48485512.

The previous prime is 121213759. The next prime is 121213801. The reversal of 121213790 is 97312121.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060680 + ... + 6060699.

It is an arithmetic number, because the mean of its divisors is an integer number (27273105).

Almost surely, 2^121213790 is an apocalyptic number.

121213790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121213790 is a deficient number, since it is larger than the sum of its proper divisors (96971050).

121213790 is a wasteful number, since it uses less digits than its factorization.

121213790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121386.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 121213790 is about 11009.7134385959. The cubic root of 121213790 is about 494.8998743171.

The spelling of 121213790 in words is "one hundred twenty-one million, two hundred thirteen thousand, seven hundred ninety".