201615051122 has 4 divisors (see below), whose sum is σ = 302422576686. Its totient is φ = 100807525560.

The previous prime is 201615051109. The next prime is 201615051149. The reversal of 201615051122 is 221150516102.

201615051122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221150516102 = 2 ⋅110575258051.

It can be written as a sum of positive squares in only one way, i.e., 201206970721 + 408080401 = 448561^2 + 20201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201615051091 and 201615051100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50403762779 + ... + 50403762782.

Almost surely, 2^201615051122 is an apocalyptic number.

201615051122 is a deficient number, since it is larger than the sum of its proper divisors (100807525564).

201615051122 is a wasteful number, since it uses less digits than its factorization.

201615051122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100807525563.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 201615051122 its reverse (221150516102), we get a palindrome (422765567224).

The spelling of 201615051122 in words is "two hundred one billion, six hundred fifteen million, fifty-one thousand, one hundred twenty-two".