221214010031 has 16 divisors (see below), whose sum is σ = 254646712320. Its totient is φ = 188242561440.

The previous prime is 221214010013. The next prime is 221214010037. The reversal of 221214010031 is 130010412122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221214010031 is a prime.

It is a super-2 number, since 2×221214010031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221214009991 and 221214010009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221214010037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595010 + ... + 892448.

It is an arithmetic number, because the mean of its divisors is an integer number (15915419520).

Almost surely, 2^221214010031 is an apocalyptic number.

221214010031 is a deficient number, since it is larger than the sum of its proper divisors (33432702289).

221214010031 is a wasteful number, since it uses less digits than its factorization.

221214010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298214.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221214010031 its reverse (130010412122), we get a palindrome (351224422153).

The spelling of 221214010031 in words is "two hundred twenty-one billion, two hundred fourteen million, ten thousand, thirty-one".