2121222101311 has 2 divisors, whose sum is σ = 2121222101312. Its totient is φ = 2121222101310.

The previous prime is 2121222101281. The next prime is 2121222101333. The reversal of 2121222101311 is 1131012221212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121222101311 - 2³³ = 2112632166719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121222104311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060611050655 + 1060611050656.

It is an arithmetic number, because the mean of its divisors is an integer number (1060611050656).

Almost surely, 2^{2121222101311} is an apocalyptic number.

2121222101311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121222101311 is an equidigital number, since it uses as much as digits as its factorization.

2121222101311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2121222101311 its reverse (1131012221212), we get a palindrome (3252234322523).

The spelling of 2121222101311 in words is "two trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, three hundred eleven".