201212019 has 14 divisors (see below), whose sum is σ = 301681116. Its totient is φ = 134140860.

The previous prime is 201211999. The next prime is 201212021. The reversal of 201212019 is 910212102.

It is not a de Polignac number, because 201212019 - 2⁵ = 201211987 is a prime.

It is a super-2 number, since 2×201212019² = 80972553180112722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201211992 and 201212010.

It is not an unprimeable number, because it can be changed into a prime (201212059) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 137277 + ... + 138734.

Almost surely, 2^201212019 is an apocalyptic number.

201212019 is a deficient number, since it is larger than the sum of its proper divisors (100469097).

201212019 is an frugal number, since it uses more digits than its factorization.

201212019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276029 (or 276014 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 201212019 is about 14184.9222415916. The cubic root of 201212019 is about 585.9824910221.

The spelling of 201212019 in words is "two hundred one million, two hundred twelve thousand, nineteen".