921221080614 has 32 divisors (see below), whose sum is σ = 2049481738080. Its totient is φ = 306725126400.

The previous prime is 921221080613. The next prime is 921221080621. The reversal of 921221080614 is 416080122129.

921221080614 is a `hidden beast` number, since 9 + 2 + 1 + 22 + 10 + 8 + 0 + 614 = 666.

921221080614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (921221080613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9634407 + ... + 9729554.

It is an arithmetic number, because the mean of its divisors is an integer number (64046304315).

Almost surely, 2^921221080614 is an apocalyptic number.

921221080614 is an abundant number, since it is smaller than the sum of its proper divisors (1128260657466).

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

921221080614 is a wasteful number, since it uses less digits than its factorization.

921221080614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19364853 (or 19364847 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 921221080614 in words is "nine hundred twenty-one billion, two hundred twenty-one million, eighty thousand, six hundred fourteen".