21216020143096 has 16 divisors (see below), whose sum is σ = 42120039990240. Its totient is φ = 9984009479040.

The previous prime is 21216020143069. The next prime is 21216020143121. The reversal of 21216020143096 is 69034102061212.

It is a happy number.

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, 78000073920 + ... + 78000074191.

It is an arithmetic number, because the mean of its divisors is an integer number (2632502499390).

Almost surely, 2^{21216020143096} is an apocalyptic number.

It is an amenable number.

21216020143096 is a deficient number, since it is larger than the sum of its proper divisors (20904019847144).

21216020143096 is a wasteful number, since it uses less digits than its factorization.

21216020143096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156000148134 (or 156000148130 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 21216020143096 in words is "twenty-one trillion, two hundred sixteen billion, twenty million, one hundred forty-three thousand, ninety-six".