2011211100012 has 24 divisors (see below), whose sum is σ = 4692865060912. Its totient is φ = 670398105600.

The previous prime is 2011211100001. The next prime is 2011211100127. The reversal of 2011211100012 is 2100011121102.

It is a super-2 number, since 2×2011211100012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955212 + ... + 2221452.

Almost surely, 2^{2011211100012} is an apocalyptic number.

It is an amenable number.

2011211100012 is an abundant number, since it is smaller than the sum of its proper divisors (2681653960900).

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

2011211100012 is a wasteful number, since it uses less digits than its factorization.

2011211100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398609 (or 1398607 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2011211100012 its reverse (2100011121102), we get a palindrome (4111222221114).

The spelling of 2011211100012 in words is "two trillion, eleven billion, two hundred eleven million, one hundred thousand, twelve".