2122120121238 has 24 divisors (see below), whose sum is σ = 4951613616768. Its totient is φ = 652960037232.

The previous prime is 2122120121237. The next prime is 2122120121249. The reversal of 2122120121238 is 8321210212212.

2122120121238 is a `hidden beast` number, since 2 + 1 + 221 + 201 + 2 + 1 + 238 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122120121237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4534444470 + ... + 4534444937.

It is an arithmetic number, because the mean of its divisors is an integer number (206317234032).

Almost surely, 2^{2122120121238} is an apocalyptic number.

2122120121238 is an abundant number, since it is smaller than the sum of its proper divisors (2829493495530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2122120121238 is a wasteful number, since it uses less digits than its factorization.

2122120121238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068889428 (or 9068889425 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The spelling of 2122120121238 in words is "two trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-eight".