2121011211102 has 32 divisors (see below), whose sum is σ = 4851031375872. Its totient is φ = 605627484384.

The previous prime is 2121011211091. The next prime is 2121011211257. The reversal of 2121011211102 is 2011121101212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15586398 + ... + 15721889.

It is an arithmetic number, because the mean of its divisors is an integer number (151594730496).

Almost surely, 2^{2121011211102} is an apocalyptic number.

2121011211102 is an abundant number, since it is smaller than the sum of its proper divisors (2730020164770).

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

2121011211102 is a wasteful number, since it uses less digits than its factorization.

2121011211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31309912.

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

Adding to 2121011211102 its reverse (2011121101212), we get a palindrome (4132132312314).

The spelling of 2121011211102 in words is "two trillion, one hundred twenty-one billion, eleven million, two hundred eleven thousand, one hundred two".