122103021 has 32 divisors (see below), whose sum is σ = 177408000. Its totient is φ = 74467008.

The previous prime is 122103019. The next prime is 122103077. The reversal of 122103021 is 120301221.

It is not a de Polignac number, because 122103021 - 2¹ = 122103019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122102988 and 122103006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122103521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 277920 + ... + 278358.

It is an arithmetic number, because the mean of its divisors is an integer number (5544000).

Almost surely, 2^122103021 is an apocalyptic number.

It is an amenable number.

122103021 is a deficient number, since it is larger than the sum of its proper divisors (55304979).

122103021 is a wasteful number, since it uses less digits than its factorization.

122103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122103021 is about 11050.0235746355. The cubic root of 122103021 is about 496.1071311363.

Adding to 122103021 its reverse (120301221), we get a palindrome (242404242).

The spelling of 122103021 in words is "one hundred twenty-two million, one hundred three thousand, twenty-one".