122134021 has 8 divisors (see below), whose sum is σ = 123139800. Its totient is φ = 121132032.

The previous prime is 122134013. The next prime is 122134031. The reversal of 122134021 is 120431221.

It can be written as a sum of positive squares in 4 ways, for example, as 60684100 + 61449921 = 7790^2 + 7839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122134021 - 2³ = 122134013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122133986 and 122134004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122134031) 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, 115905 + ... + 116953.

It is an arithmetic number, because the mean of its divisors is an integer number (15392475).

Almost surely, 2^122134021 is an apocalyptic number.

It is an amenable number.

122134021 is a deficient number, since it is larger than the sum of its proper divisors (1005779).

122134021 is a wasteful number, since it uses less digits than its factorization.

122134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 122134021 is about 11051.4261975548. The cubic root of 122134021 is about 496.1491121334.

Adding to 122134021 its reverse (120431221), we get a palindrome (242565242).

The spelling of 122134021 in words is "one hundred twenty-two million, one hundred thirty-four thousand, twenty-one".