121220107026726 has 8 divisors (see below), whose sum is σ = 242440214053464. Its totient is φ = 40406702342240.

The previous prime is 121220107026611. The next prime is 121220107026727. The reversal of 121220107026726 is 627620701022121.

It is a happy number.

121220107026726 is digitally balanced in base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

121220107026726 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220107026727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10101675585555 + ... + 10101675585566.

It is an arithmetic number, because the mean of its divisors is an integer number (30305026756683).

Almost surely, 2^{121220107026726} is an apocalyptic number.

121220107026726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121220107026726 is a wasteful number, since it uses less digits than its factorization.

121220107026726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203351171126.

The product of its (nonzero) digits is 56448, while the sum is 39.

Adding to 121220107026726 its reverse (627620701022121), we get a palindrome (748840808048847).

The spelling of 121220107026726 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred seven million, twenty-six thousand, seven hundred twenty-six".