126216870901 has 8 divisors (see below), whose sum is σ = 137925706464. Its totient is φ = 114547131120.

The previous prime is 126216870893. The next prime is 126216870911. The reversal of 126216870901 is 109078612621.

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

It is a cyclic number.

It is not a de Polignac number, because 126216870901 - 2³ = 126216870893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126216870911) 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, 9767190 + ... + 9780103.

It is an arithmetic number, because the mean of its divisors is an integer number (17240713308).

Almost surely, 2^126216870901 is an apocalyptic number.

126216870901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126216870901 is a deficient number, since it is larger than the sum of its proper divisors (11708835563).

126216870901 is a wasteful number, since it uses less digits than its factorization.

126216870901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19547891.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 126216870901 in words is "one hundred twenty-six billion, two hundred sixteen million, eight hundred seventy thousand, nine hundred one".