102200199981 has 8 divisors (see below), whose sum is σ = 148654836384. Its totient is φ = 61939515120.

The previous prime is 102200199949. The next prime is 102200199989. The reversal of 102200199981 is 189991002201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102200199981 - 2⁵ = 102200199949 is a prime.

It is a super-2 number, since 2×102200199981² (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 (102200199989) 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, 1548487846 + ... + 1548487911.

It is an arithmetic number, because the mean of its divisors is an integer number (18581854548).

Almost surely, 2^102200199981 is an apocalyptic number.

102200199981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102200199981 is a deficient number, since it is larger than the sum of its proper divisors (46454636403).

102200199981 is a wasteful number, since it uses less digits than its factorization.

102200199981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096975771.

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 102200199981 in words is "one hundred two billion, two hundred million, one hundred ninety-nine thousand, nine hundred eighty-one".