21212326950054 has 8 divisors (see below), whose sum is σ = 42424653900120. Its totient is φ = 7070775650016.

The previous prime is 21212326950041. The next prime is 21212326950077. The reversal of 21212326950054 is 45005962321212.

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

21212326950054 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21212326949988 and 21212326950015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767693912499 + ... + 1767693912510.

It is an arithmetic number, because the mean of its divisors is an integer number (5303081737515).

Almost surely, 2^{21212326950054} is an apocalyptic number.

21212326950054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21212326950054 is a wasteful number, since it uses less digits than its factorization.

21212326950054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535387825014.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 21212326950054 in words is "twenty-one trillion, two hundred twelve billion, three hundred twenty-six million, nine hundred fifty thousand, fifty-four".