212906017049 has 32 divisors (see below), whose sum is σ = 242457753600. Its totient is φ = 185234005440.

The previous prime is 212906017039. The next prime is 212906017063. The reversal of 212906017049 is 940710609212.

It is not a de Polignac number, because 212906017049 - 2¹² = 212906012953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212906016997 and 212906017015.

It is not an unprimeable number, because it can be changed into a prime (212906017039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19600982 + ... + 19611840.

It is an arithmetic number, because the mean of its divisors is an integer number (7576804800).

Almost surely, 2^212906017049 is an apocalyptic number.

It is an amenable number.

212906017049 is a deficient number, since it is larger than the sum of its proper divisors (29551736551).

212906017049 is a wasteful number, since it uses less digits than its factorization.

212906017049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11693.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 212906017049 in words is "two hundred twelve billion, nine hundred six million, seventeen thousand, forty-nine".