2121001211110 has 32 divisors (see below), whose sum is σ = 4029232066560. Its totient is φ = 801649241568.

The previous prime is 2121001211029. The next prime is 2121001211111. The reversal of 2121001211110 is 111121001212.

It is a happy number.

It is a super-2 number, since 2×2121001211110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121001211111) 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, 14500552 + ... + 14646091.

It is an arithmetic number, because the mean of its divisors is an integer number (125913502080).

Almost surely, 2^{2121001211110} is an apocalyptic number.

2121001211110 is a deficient number, since it is larger than the sum of its proper divisors (1908230855450).

2121001211110 is a wasteful number, since it uses less digits than its factorization.

2121001211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29147052.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2121001211110 its reverse (111121001212), we get a palindrome (2232122212322).

The spelling of 2121001211110 in words is "two trillion, one hundred twenty-one billion, one million, two hundred eleven thousand, one hundred ten".