121401220234 has 16 divisors (see below), whose sum is σ = 208486047168. Its totient is φ = 51936676992.

The previous prime is 121401220139. The next prime is 121401220247. The reversal of 121401220234 is 432022104121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7693287 + ... + 7709050.

It is an arithmetic number, because the mean of its divisors is an integer number (13030377948).

Almost surely, 2^121401220234 is an apocalyptic number.

121401220234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121401220234 is a deficient number, since it is larger than the sum of its proper divisors (87084826934).

121401220234 is a wasteful number, since it uses less digits than its factorization.

121401220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402909.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121401220234 its reverse (432022104121), we get a palindrome (553423324355).

The spelling of 121401220234 in words is "one hundred twenty-one billion, four hundred one million, two hundred twenty thousand, two hundred thirty-four".