201099798742 has 16 divisors (see below), whose sum is σ = 329696825472. Its totient is φ = 91582450560.

The previous prime is 201099798733. The next prime is 201099798743. The reversal of 201099798742 is 247897990102.

It is a super-2 number, since 2×201099798742² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201099798743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95397333 + ... + 95399440.

It is an arithmetic number, because the mean of its divisors is an integer number (20606051592).

Almost surely, 2^201099798742 is an apocalyptic number.

201099798742 is a deficient number, since it is larger than the sum of its proper divisors (128597026730).

201099798742 is a wasteful number, since it uses less digits than its factorization.

201099798742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190796823.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 201099798742 in words is "two hundred one billion, ninety-nine million, seven hundred ninety-eight thousand, seven hundred forty-two".