15102000020122 has 16 divisors (see below), whose sum is σ = 23265688798440. Its totient is φ = 7346778236928.

The previous prime is 15102000020119. The next prime is 15102000020131. The reversal of 15102000020122 is 22102000020151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15097584284721 + 4415735401 = 3885561^2 + 66451^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15102000020096 and 15102000020105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989754 + ... + 5844922.

Almost surely, 2^{15102000020122} is an apocalyptic number.

15102000020122 is a deficient number, since it is larger than the sum of its proper divisors (8163688778318).

15102000020122 is a wasteful number, since it uses less digits than its factorization.

15102000020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908145.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 15102000020122 its reverse (22102000020151), we get a palindrome (37204000040273).

The spelling of 15102000020122 in words is "fifteen trillion, one hundred two billion, twenty thousand, one hundred twenty-two".