21221462343262 has 32 divisors (see below), whose sum is σ = 34965565643520. Its totient is φ = 9614902144320.

The previous prime is 21221462343259. The next prime is 21221462343299. The reversal of 21221462343262 is 26234326412212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27484962 + ... + 28246522.

It is an arithmetic number, because the mean of its divisors is an integer number (1092673926360).

Almost surely, 2^{21221462343262} is an apocalyptic number.

21221462343262 is a deficient number, since it is larger than the sum of its proper divisors (13744103300258).

21221462343262 is a wasteful number, since it uses less digits than its factorization.

21221462343262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793488.

The product of its digits is 331776, while the sum is 40.

Adding to 21221462343262 its reverse (26234326412212), we get a palindrome (47455788755474).

The spelling of 21221462343262 in words is "twenty-one trillion, two hundred twenty-one billion, four hundred sixty-two million, three hundred forty-three thousand, two hundred sixty-two".