102201251505 has 16 divisors (see below), whose sum is σ = 163530527424. Its totient is φ = 54504492480.

The previous prime is 102201251489. The next prime is 102201251561. The reversal of 102201251505 is 505152102201.

It is not a de Polignac number, because 102201251505 - 2⁴ = 102201251489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137775 + ... + 472635.

It is an arithmetic number, because the mean of its divisors is an integer number (10220657964).

Almost surely, 2^102201251505 is an apocalyptic number.

102201251505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102201251505 is a deficient number, since it is larger than the sum of its proper divisors (61329275919).

102201251505 is a wasteful number, since it uses less digits than its factorization.

102201251505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355216.

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 102201251505 its reverse (505152102201), we get a palindrome (607353353706).

The spelling of 102201251505 in words is "one hundred two billion, two hundred one million, two hundred fifty-one thousand, five hundred five".