21150206324214 has 64 divisors (see below), whose sum is σ = 48589868113920. Its totient is φ = 6069925620000.

The previous prime is 21150206324183. The next prime is 21150206324231. The reversal of 21150206324214 is 41242360205112.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1358739 + ... + 6644289.

It is an arithmetic number, because the mean of its divisors is an integer number (759216689280).

Almost surely, 2^{21150206324214} is an apocalyptic number.

21150206324214 is an abundant number, since it is smaller than the sum of its proper divisors (27439661789706).

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

21150206324214 is a wasteful number, since it uses less digits than its factorization.

21150206324214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288777.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 21150206324214 its reverse (41242360205112), we get a palindrome (62392566529326).

The spelling of 21150206324214 in words is "twenty-one trillion, one hundred fifty billion, two hundred six million, three hundred twenty-four thousand, two hundred fourteen".