121400123214 has 32 divisors (see below), whose sum is σ = 247235014656. Its totient is φ = 39734150400.

The previous prime is 121400123209. The next prime is 121400123233. The reversal of 121400123214 is 412321004121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747312 + ... + 895139.

It is an arithmetic number, because the mean of its divisors is an integer number (7726094208).

Almost surely, 2^121400123214 is an apocalyptic number.

121400123214 is an abundant number, since it is smaller than the sum of its proper divisors (125834891442).

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

121400123214 is a wasteful number, since it uses less digits than its factorization.

121400123214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642680.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121400123214 its reverse (412321004121), we get a palindrome (533721127335).

The spelling of 121400123214 in words is "one hundred twenty-one billion, four hundred million, one hundred twenty-three thousand, two hundred fourteen".