4021422134215 has 4 divisors (see below), whose sum is σ = 4825706561064. Its totient is φ = 3217137707368.

The previous prime is 4021422134209. The next prime is 4021422134227. The reversal of 4021422134215 is 5124312241204.

4021422134215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4021422134215 - 2¹³ = 4021422126023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402142213417 + ... + 402142213426.

It is an arithmetic number, because the mean of its divisors is an integer number (1206426640266).

Almost surely, 2^{4021422134215} is an apocalyptic number.

4021422134215 is a deficient number, since it is larger than the sum of its proper divisors (804284426849).

4021422134215 is an equidigital number, since it uses as much as digits as its factorization.

4021422134215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804284426848.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 4021422134215 its reverse (5124312241204), we get a palindrome (9145734375419).

The spelling of 4021422134215 in words is "four trillion, twenty-one billion, four hundred twenty-two million, one hundred thirty-four thousand, two hundred fifteen".