1021212122311 has 8 divisors (see below), whose sum is σ = 1065893386464. Its totient is φ = 976554252960.

The previous prime is 1021212122279. The next prime is 1021212122323. The reversal of 1021212122311 is 1132212121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021212122311 - 2⁵ = 1021212122279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021212122111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5759460 + ... + 5934121.

It is an arithmetic number, because the mean of its divisors is an integer number (133236673308).

Almost surely, 2^{1021212122311} is an apocalyptic number.

1021212122311 is a deficient number, since it is larger than the sum of its proper divisors (44681264153).

1021212122311 is a wasteful number, since it uses less digits than its factorization.

1021212122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11697401.

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

Adding to 1021212122311 its reverse (1132212121201), we get a palindrome (2153424243512).

The spelling of 1021212122311 in words is "one trillion, twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, three hundred eleven".