21214036501262 has 16 divisors (see below), whose sum is σ = 34734382330032. Its totient is φ = 9637048192320.

The previous prime is 21214036501237. The next prime is 21214036501267. The reversal of 21214036501262 is 26210563041212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214036501267) 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, 284745503 + ... + 284819994.

It is an arithmetic number, because the mean of its divisors is an integer number (2170898895627).

Almost surely, 2^{21214036501262} is an apocalyptic number.

21214036501262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21214036501262 is a deficient number, since it is larger than the sum of its proper divisors (13520345828770).

21214036501262 is a wasteful number, since it uses less digits than its factorization.

21214036501262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569567203.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 21214036501262 its reverse (26210563041212), we get a palindrome (47424599542474).

The spelling of 21214036501262 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred one thousand, two hundred sixty-two".