211220011021033 has 96 divisors (see below), whose sum is σ = 264035368452096. Its totient is φ = 167876540762112.

The previous prime is 211220011021027. The next prime is 211220011021181. The reversal of 211220011021033 is 330120110022112.

It is a de Polignac number, because none of the positive numbers 2^k-211220011021033 is a prime.

It is a super-2 number, since 2×211220011021033² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211220011021033.

It is not an unprimeable number, because it can be changed into a prime (211220011027033) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40642677991 + ... + 40642683187.

It is an arithmetic number, because the mean of its divisors is an integer number (2750368421376).

Almost surely, 2^{211220011021033} is an apocalyptic number.

It is an amenable number.

211220011021033 is a deficient number, since it is larger than the sum of its proper divisors (52815357431063).

211220011021033 is a wasteful number, since it uses less digits than its factorization.

211220011021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7959 (or 7952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211220011021033 its reverse (330120110022112), we get a palindrome (541340121043145).

The spelling of 211220011021033 in words is "two hundred eleven trillion, two hundred twenty billion, eleven million, twenty-one thousand, thirty-three".