201790181212 has 12 divisors (see below), whose sum is σ = 353179723120. Its totient is φ = 100881688896.

The previous prime is 201790181191. The next prime is 201790181221. The reversal of 201790181212 is 212181097102.

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, 3316512 + ... + 3376807.

Almost surely, 2^201790181212 is an apocalyptic number.

It is an amenable number.

201790181212 is a deficient number, since it is larger than the sum of its proper divisors (151389541908).

201790181212 is a wasteful number, since it uses less digits than its factorization.

201790181212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700860 (or 6700858 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 201790181212 in words is "two hundred one billion, seven hundred ninety million, one hundred eighty-one thousand, two hundred twelve".