10120021420242 has 32 divisors (see below), whose sum is σ = 20715521105664. Its totient is φ = 3294405478400.

The previous prime is 10120021420241. The next prime is 10120021420247. The reversal of 10120021420242 is 24202412002101.

It is not an unprimeable number, because it can be changed into a prime (10120021420241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38792559 + ... + 39052562.

It is an arithmetic number, because the mean of its divisors is an integer number (647360034552).

Almost surely, 2^{10120021420242} is an apocalyptic number.

10120021420242 is an abundant number, since it is smaller than the sum of its proper divisors (10595499685422).

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

10120021420242 is a wasteful number, since it uses less digits than its factorization.

10120021420242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77845634.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10120021420242 its reverse (24202412002101), we get a palindrome (34322433422343).

The spelling of 10120021420242 in words is "ten trillion, one hundred twenty billion, twenty-one million, four hundred twenty thousand, two hundred forty-two".