103121220442 has 16 divisors (see below), whose sum is σ = 159698552832. Its totient is φ = 49888931760.

The previous prime is 103121220439. The next prime is 103121220443. The reversal of 103121220442 is 244022121301.

It is a super-2 number, since 2×103121220442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103121220443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237388 + ... + 512440.

It is an arithmetic number, because the mean of its divisors is an integer number (9981159552).

Almost surely, 2^103121220442 is an apocalyptic number.

103121220442 is a deficient number, since it is larger than the sum of its proper divisors (56577332390).

103121220442 is a wasteful number, since it uses less digits than its factorization.

103121220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281133.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 103121220442 its reverse (244022121301), we get a palindrome (347143341743).

The spelling of 103121220442 in words is "one hundred three billion, one hundred twenty-one million, two hundred twenty thousand, four hundred forty-two".