801121002223311 has 192 divisors, whose sum is σ = 1535012054553600. Its totient is φ = 408190223750400.

The previous prime is 801121002223307. The next prime is 801121002223337. The reversal of 801121002223311 is 113322200121108.

It is a happy number.

801121002223311 is a `hidden beast` number, since 8 + 0 + 1 + 1 + 2 + 100 + 222 + 331 + 1 = 666.

It is not a de Polignac number, because 801121002223311 - 2² = 801121002223307 is a prime.

It is a super-2 number, since 2×801121002223311² (a number of 31 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801121002223301) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2559818101 + ... + 2560131041.

It is an arithmetic number, because the mean of its divisors is an integer number (7994854450800).

Almost surely, 2^{801121002223311} is an apocalyptic number.

801121002223311 is a deficient number, since it is larger than the sum of its proper divisors (733891052330289).

801121002223311 is a wasteful number, since it uses less digits than its factorization.

801121002223311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316347 (or 316334 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 801121002223311 its reverse (113322200121108), we get a palindrome (914443202344419).

The spelling of 801121002223311 in words is "eight hundred one trillion, one hundred twenty-one billion, two million, two hundred twenty-three thousand, three hundred eleven".