921240822061 has 16 divisors (see below), whose sum is σ = 1059396678144. Its totient is φ = 784726475904.

The previous prime is 921240822043. The next prime is 921240822077. The reversal of 921240822061 is 160228042129.

It is not a de Polignac number, because 921240822061 - 2¹³ = 921240813869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 921240822061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921240825061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2616076 + ... + 2947258.

It is an arithmetic number, because the mean of its divisors is an integer number (66212292384).

Almost surely, 2^921240822061 is an apocalyptic number.

It is an amenable number.

921240822061 is a deficient number, since it is larger than the sum of its proper divisors (138155856083).

921240822061 is a wasteful number, since it uses less digits than its factorization.

921240822061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333660.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 921240822061 in words is "nine hundred twenty-one billion, two hundred forty million, eight hundred twenty-two thousand, sixty-one".