2120121012044 has 36 divisors (see below), whose sum is σ = 4370593076640. Its totient is φ = 897121723680.

The previous prime is 2120121012043. The next prime is 2120121012047. The reversal of 2120121012044 is 4402101210212.

It is not an unprimeable number, because it can be changed into a prime (2120121012043) 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, 68446187 + ... + 68477154.

It is an arithmetic number, because the mean of its divisors is an integer number (121405363240).

Almost surely, 2^{2120121012044} is an apocalyptic number.

It is an amenable number.

2120121012044 is an abundant number, since it is smaller than the sum of its proper divisors (2250472064596).

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

2120121012044 is a wasteful number, since it uses less digits than its factorization.

2120121012044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136923438 (or 136923429 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2120121012044 its reverse (4402101210212), we get a palindrome (6522222222256).

The spelling of 2120121012044 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twelve thousand, forty-four".