2021221343134 has 24 divisors (see below), whose sum is σ = 3528259669080. Its totient is φ = 865885342896.

The previous prime is 2021221343117. The next prime is 2021221343177. The reversal of 2021221343134 is 4313431221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3952737 + ... + 4434700.

It is an arithmetic number, because the mean of its divisors is an integer number (147010819545).

Almost surely, 2^{2021221343134} is an apocalyptic number.

2021221343134 is a deficient number, since it is larger than the sum of its proper divisors (1507038325946).

2021221343134 is a wasteful number, since it uses less digits than its factorization.

2021221343134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8389912 (or 8389905 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2021221343134 its reverse (4313431221202), we get a palindrome (6334652564336).

The spelling of 2021221343134 in words is "two trillion, twenty-one billion, two hundred twenty-one million, three hundred forty-three thousand, one hundred thirty-four".