103402501221 has 16 divisors (see below), whose sum is σ = 139661051904. Its totient is φ = 68044987584.

The previous prime is 103402501193. The next prime is 103402501261. The reversal of 103402501221 is 122105204301.

It is not a de Polignac number, because 103402501221 - 2⁷ = 103402501093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103402501261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613770 + ... + 763883.

It is an arithmetic number, because the mean of its divisors is an integer number (8728815744).

Almost surely, 2^103402501221 is an apocalyptic number.

It is an amenable number.

103402501221 is a deficient number, since it is larger than the sum of its proper divisors (36258550683).

103402501221 is a wasteful number, since it uses less digits than its factorization.

103402501221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377980.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 103402501221 its reverse (122105204301), we get a palindrome (225507705522).

The spelling of 103402501221 in words is "one hundred three billion, four hundred two million, five hundred one thousand, two hundred twenty-one".