221202113387 has 2 divisors, whose sum is σ = 221202113388. Its totient is φ = 221202113386.

The previous prime is 221202113371. The next prime is 221202113441. The reversal of 221202113387 is 783311202122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221202113387 - 2⁴ = 221202113371 is a prime.

It is a super-2 number, since 2×221202113387² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221202113317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110601056693 + 110601056694.

It is an arithmetic number, because the mean of its divisors is an integer number (110601056694).

Almost surely, 2^221202113387 is an apocalyptic number.

221202113387 is a deficient number, since it is larger than the sum of its proper divisors (1).

221202113387 is an equidigital number, since it uses as much as digits as its factorization.

221202113387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 221202113387 in words is "two hundred twenty-one billion, two hundred two million, one hundred thirteen thousand, three hundred eighty-seven".