42121404121010 has 64 divisors (see below), whose sum is σ = 76124554168320. Its totient is φ = 16780714399680.

The previous prime is 42121404120977. The next prime is 42121404121019. The reversal of 42121404121010 is 1012140412124.

It is not an unprimeable number, because it can be changed into a prime (42121404121019) 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, 8521422599 + ... + 8521427541.

It is an arithmetic number, because the mean of its divisors is an integer number (1189446158880).

Almost surely, 2^{42121404121010} is an apocalyptic number.

42121404121010 is a deficient number, since it is larger than the sum of its proper divisors (34003150047310).

42121404121010 is a wasteful number, since it uses less digits than its factorization.

42121404121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8303.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 42121404121010 its reverse (1012140412124), we get a palindrome (43133544533134).

The spelling of 42121404121010 in words is "forty-two trillion, one hundred twenty-one billion, four hundred four million, one hundred twenty-one thousand, ten".