22121012011342 has 4 divisors (see below), whose sum is σ = 33181518017016. Its totient is φ = 11060506005670.

The previous prime is 22121012011333. The next prime is 22121012011379. The reversal of 22121012011342 is 24311021012122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530253002834 + ... + 5530253002837.

It is an arithmetic number, because the mean of its divisors is an integer number (8295379504254).

Almost surely, 2^{22121012011342} is an apocalyptic number.

22121012011342 is a deficient number, since it is larger than the sum of its proper divisors (11060506005674).

22121012011342 is a wasteful number, since it uses less digits than its factorization.

22121012011342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060506005673.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 22121012011342 its reverse (24311021012122), we get a palindrome (46432033023464).

The spelling of 22121012011342 in words is "twenty-two trillion, one hundred twenty-one billion, twelve million, eleven thousand, three hundred forty-two".