21211011302 has 8 divisors (see below), whose sum is σ = 34263941376. Its totient is φ = 9789697512.

The previous prime is 21211011293. The next prime is 21211011337. The reversal of 21211011302 is 20311011212.

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

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, 407904038 + ... + 407904089.

It is an arithmetic number, because the mean of its divisors is an integer number (4282992672).

Almost surely, 2^21211011302 is an apocalyptic number.

21211011302 is a deficient number, since it is larger than the sum of its proper divisors (13052930074).

21211011302 is a wasteful number, since it uses less digits than its factorization.

21211011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815808142.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21211011302 its reverse (20311011212), we get a palindrome (41522022514).

The spelling of 21211011302 in words is "twenty-one billion, two hundred eleven million, eleven thousand, three hundred two".