212626555401 has 16 divisors (see below), whose sum is σ = 306304437824. Its totient is φ = 130420891584.

The previous prime is 212626555391. The next prime is 212626555417. The reversal of 212626555401 is 104555626212.

It is not a de Polignac number, because 212626555401 - 2¹¹ = 212626553353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212626555401.

It is not an unprimeable number, because it can be changed into a prime (212626553401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8867446 + ... + 8891391.

It is an arithmetic number, because the mean of its divisors is an integer number (19144027364).

Almost surely, 2^212626555401 is an apocalyptic number.

It is an amenable number.

212626555401 is a deficient number, since it is larger than the sum of its proper divisors (93677882423).

212626555401 is a wasteful number, since it uses less digits than its factorization.

212626555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17759160.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 212626555401 in words is "two hundred twelve billion, six hundred twenty-six million, five hundred fifty-five thousand, four hundred one".