381011212 has 6 divisors (see below), whose sum is σ = 666769628. Its totient is φ = 190505604.

The previous prime is 381011207. The next prime is 381011263. The reversal of 381011212 is 212110183.

It is a self number, because there is not a number n which added to its sum of digits gives 381011212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47626398 + ... + 47626405.

Almost surely, 2^381011212 is an apocalyptic number.

It is an amenable number.

381011212 is a deficient number, since it is larger than the sum of its proper divisors (285758416).

381011212 is a wasteful number, since it uses less digits than its factorization.

381011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95252807 (or 95252805 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 381011212 is about 19519.5084979105. The cubic root of 381011212 is about 724.9575635883.

Adding to 381011212 its reverse (212110183), we get a palindrome (593121395).

The spelling of 381011212 in words is "three hundred eighty-one million, eleven thousand, two hundred twelve".