3942211141081 has 4 divisors (see below), whose sum is σ = 4149695938000. Its totient is φ = 3734726344164.

The previous prime is 3942211141073. The next prime is 3942211141087. The reversal of 3942211141081 is 1801411122493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3942211141081 - 2³ = 3942211141073 is a prime.

It is a super-2 number, since 2×3942211141081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3942211141081.

It is not an unprimeable number, because it can be changed into a prime (3942211141087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103742398431 + ... + 103742398468.

It is an arithmetic number, because the mean of its divisors is an integer number (1037423984500).

Almost surely, 2^{3942211141081} is an apocalyptic number.

It is an amenable number.

3942211141081 is a deficient number, since it is larger than the sum of its proper divisors (207484796919).

3942211141081 is a wasteful number, since it uses less digits than its factorization.

3942211141081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207484796918.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 3942211141081 in words is "three trillion, nine hundred forty-two billion, two hundred eleven million, one hundred forty-one thousand, eighty-one".