2011020221212 has 6 divisors (see below), whose sum is σ = 3519285387128. Its totient is φ = 1005510110604.

The previous prime is 2011020221191. The next prime is 2011020221233. The reversal of 2011020221212 is 2121220201102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2011020221191) and next prime (2011020221233).

It is a super-2 number, since 2×2011020221212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251377527648 + ... + 251377527655.

Almost surely, 2^{2011020221212} is an apocalyptic number.

It is an amenable number.

2011020221212 is a deficient number, since it is larger than the sum of its proper divisors (1508265165916).

2011020221212 is a wasteful number, since it uses less digits than its factorization.

2011020221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502755055307 (or 502755055305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2011020221212 its reverse (2121220201102), we get a palindrome (4132240422314).

The spelling of 2011020221212 in words is "two trillion, eleven billion, twenty million, two hundred twenty-one thousand, two hundred twelve".