1000000201212 has 18 divisors (see below), whose sum is σ = 2527778286488. Its totient is φ = 333333400392.

The previous prime is 1000000201201. The next prime is 1000000201229. The reversal of 1000000201212 is 2121020000001.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000000201194 and 1000000201203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13888891648 + ... + 13888891719.

Almost surely, 2^{1000000201212} is an apocalyptic number.

1000000201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000000201212 is an abundant number, since it is smaller than the sum of its proper divisors (1527778085276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000000201212 is a wasteful number, since it uses less digits than its factorization.

1000000201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27777783377 (or 27777783372 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000000201212 its reverse (2121020000001), we get a palindrome (3121020201213).

The spelling of 1000000201212 in words is "one trillion, two hundred one thousand, two hundred twelve".