7121027001101 has 4 divisors (see below), whose sum is σ = 7668798308892. Its totient is φ = 6573255693312.

The previous prime is 7121027001091. The next prime is 7121027001139. The reversal of 7121027001101 is 1011007201217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3861810592201 + 3259216408900 = 1965149^2 + 1805330^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121027001101 - 2³⁸ = 6846149094157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121027001401) 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, 273885653876 + ... + 273885653901.

It is an arithmetic number, because the mean of its divisors is an integer number (1917199577223).

Almost surely, 2^{7121027001101} is an apocalyptic number.

It is an amenable number.

7121027001101 is a deficient number, since it is larger than the sum of its proper divisors (547771307791).

7121027001101 is a wasteful number, since it uses less digits than its factorization.

7121027001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547771307790.

The product of its (nonzero) digits is 196, while the sum is 23.

The spelling of 7121027001101 in words is "seven trillion, one hundred twenty-one billion, twenty-seven million, one thousand, one hundred one".