2211212132031 has 16 divisors (see below), whose sum is σ = 3369486873600. Its totient is φ = 1263542001888.

The previous prime is 2211212132029. The next prime is 2211212132039. The reversal of 2211212132031 is 1302312121122.

It is not a de Polignac number, because 2211212132031 - 2¹ = 2211212132029 is a prime.

It is a super-2 number, since 2×2211212132031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2211212131989 and 2211212132007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211212132039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6636325 + ... + 6961553.

It is an arithmetic number, because the mean of its divisors is an integer number (210592929600).

Almost surely, 2^{2211212132031} is an apocalyptic number.

2211212132031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2211212132031 is a deficient number, since it is larger than the sum of its proper divisors (1158274741569).

2211212132031 is a wasteful number, since it uses less digits than its factorization.

2211212132031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648998.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2211212132031 its reverse (1302312121122), we get a palindrome (3513524253153).

The spelling of 2211212132031 in words is "two trillion, two hundred eleven billion, two hundred twelve million, one hundred thirty-two thousand, thirty-one".