211212033403 has 32 divisors (see below), whose sum is σ = 259500063744. Its totient is φ = 167781030912.

The previous prime is 211212033391. The next prime is 211212033413. The reversal of 211212033403 is 304330212112.

It is a cyclic number.

It is not a de Polignac number, because 211212033403 - 2¹⁷ = 211211902331 is a prime.

It is a super-2 number, since 2×211212033403² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211212033413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38211826 + ... + 38217352.

It is an arithmetic number, because the mean of its divisors is an integer number (8109376992).

Almost surely, 2^211212033403 is an apocalyptic number.

211212033403 is a deficient number, since it is larger than the sum of its proper divisors (48288030341).

211212033403 is a wasteful number, since it uses less digits than its factorization.

211212033403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10411.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 211212033403 its reverse (304330212112), we get a palindrome (515542245515).

The spelling of 211212033403 in words is "two hundred eleven billion, two hundred twelve million, thirty-three thousand, four hundred three".