102501772102 has 32 divisors (see below), whose sum is σ = 166806700704. Its totient is φ = 47048601600.

The previous prime is 102501772091. The next prime is 102501772117. The reversal of 102501772102 is 201277105201.

It is a super-2 number, since 2×102501772102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 10761102 + ... + 10770622.

It is an arithmetic number, because the mean of its divisors is an integer number (5212709397).

Almost surely, 2^102501772102 is an apocalyptic number.

102501772102 is a deficient number, since it is larger than the sum of its proper divisors (64304928602).

102501772102 is a wasteful number, since it uses less digits than its factorization.

102501772102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17304.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 102501772102 its reverse (201277105201), we get a palindrome (303778877303).

The spelling of 102501772102 in words is "one hundred two billion, five hundred one million, seven hundred seventy-two thousand, one hundred two".