12901222210921 has 8 divisors (see below), whose sum is σ = 14074087065984. Its totient is φ = 11728361767920.

The previous prime is 12901222210889. The next prime is 12901222210931.

It is a happy number.

12901222210921 is nontrivially palindromic in base 10.

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 12901222210921 - 2⁵ = 12901222210889 is a prime.

It is a super-2 number, since 2×12901222210921² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12901222210931) 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, 9175035 + ... + 10487311.

It is an arithmetic number, because the mean of its divisors is an integer number (1759260883248).

Almost surely, 2^{12901222210921} is an apocalyptic number.

12901222210921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12901222210921 is a deficient number, since it is larger than the sum of its proper divisors (1172864855063).

12901222210921 is a wasteful number, since it uses less digits than its factorization.

12901222210921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206031.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 12901222210921 in words is "twelve trillion, nine hundred one billion, two hundred twenty-two million, two hundred ten thousand, nine hundred twenty-one".