2942121699 has 12 divisors (see below), whose sum is σ = 4636070712. Its totient is φ = 1783104000.

The previous prime is 2942121673. The next prime is 2942121719. The reversal of 2942121699 is 9961212492.

2942121699 is a `hidden beast` number, since 2 + 9 + 421 + 216 + 9 + 9 = 666.

It is not a de Polignac number, because 2942121699 - 2¹³ = 2942113507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2942121629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14859102 + ... + 14859299.

It is an arithmetic number, because the mean of its divisors is an integer number (386339226).

Almost surely, 2^2942121699 is an apocalyptic number.

2942121699 is a deficient number, since it is larger than the sum of its proper divisors (1693949013).

2942121699 is a wasteful number, since it uses less digits than its factorization.

2942121699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29718418 (or 29718415 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 2942121699 is about 54241.3283299736. The cubic root of 2942121699 is about 1432.9142809161.

The spelling of 2942121699 in words is "two billion, nine hundred forty-two million, one hundred twenty-one thousand, six hundred ninety-nine".