1421120551261 has 8 divisors (see below), whose sum is σ = 1422175653504. Its totient is φ = 1420065585600.

The previous prime is 1421120551259. The next prime is 1421120551267. The reversal of 1421120551261 is 1621550211241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421120551261 - 2¹ = 1421120551259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421120551267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30836686 + ... + 30882736.

It is an arithmetic number, because the mean of its divisors is an integer number (177771956688).

Almost surely, 2^{1421120551261} is an apocalyptic number.

It is an amenable number.

1421120551261 is a deficient number, since it is larger than the sum of its proper divisors (1055102243).

1421120551261 is a wasteful number, since it uses less digits than its factorization.

1421120551261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68291.

The product of its (nonzero) digits is 4800, while the sum is 31.

The spelling of 1421120551261 in words is "one trillion, four hundred twenty-one billion, one hundred twenty million, five hundred fifty-one thousand, two hundred sixty-one".