211213220300031 has 64 divisors (see below), whose sum is σ = 300684026880000. Its totient is φ = 131493511199232.

The previous prime is 211213220300003. The next prime is 211213220300057. The reversal of 211213220300031 is 130003022312112.

It is not a de Polignac number, because 211213220300031 - 2²¹ = 211213218202879 is a prime.

It is a super-2 number, since 2×211213220300031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211213220299980 and 211213220300007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213220300231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9715855560 + ... + 9715877298.

It is an arithmetic number, because the mean of its divisors is an integer number (4698187920000).

Almost surely, 2^{211213220300031} is an apocalyptic number.

211213220300031 is a deficient number, since it is larger than the sum of its proper divisors (89470806579969).

211213220300031 is a wasteful number, since it uses less digits than its factorization.

211213220300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25276.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211213220300031 its reverse (130003022312112), we get a palindrome (341216242612143).

The spelling of 211213220300031 in words is "two hundred eleven trillion, two hundred thirteen billion, two hundred twenty million, three hundred thousand, thirty-one".