2212121110011 has 16 divisors (see below), whose sum is σ = 3024900633216. Its totient is φ = 1437199335936.

The previous prime is 2212121109883. The next prime is 2212121110027. The reversal of 2212121110011 is 1100111212122.

It is a happy number.

It is not a de Polignac number, because 2212121110011 - 2⁷ = 2212121109883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212121110411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19297510 + ... + 19411803.

It is an arithmetic number, because the mean of its divisors is an integer number (189056289576).

Almost surely, 2^{2212121110011} is an apocalyptic number.

2212121110011 is a deficient number, since it is larger than the sum of its proper divisors (812779523205).

2212121110011 is a wasteful number, since it uses less digits than its factorization.

2212121110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38709802.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2212121110011 its reverse (1100111212122), we get a palindrome (3312232322133).

The spelling of 2212121110011 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, eleven".