221196035490 has 16 divisors (see below), whose sum is σ = 530870485248. Its totient is φ = 58985609456.

The previous prime is 221196035477. The next prime is 221196035497. The reversal of 221196035490 is 94530691122.

It is a super-2 number, since 2×221196035490² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221196035497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3686600562 + ... + 3686600621.

It is an arithmetic number, because the mean of its divisors is an integer number (33179405328).

Almost surely, 2^221196035490 is an apocalyptic number.

221196035490 is an abundant number, since it is smaller than the sum of its proper divisors (309674449758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221196035490 is a wasteful number, since it uses less digits than its factorization.

221196035490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373201193.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 221196035490 in words is "two hundred twenty-one billion, one hundred ninety-six million, thirty-five thousand, four hundred ninety".