2211919049542 has 4 divisors (see below), whose sum is σ = 3317878574316. Its totient is φ = 1105959524770.

The previous prime is 2211919049513. The next prime is 2211919049563. The reversal of 2211919049542 is 2459409191122.

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, 552979762384 + ... + 552979762387.

It is an arithmetic number, because the mean of its divisors is an integer number (829469643579).

Almost surely, 2^{2211919049542} is an apocalyptic number.

2211919049542 is a deficient number, since it is larger than the sum of its proper divisors (1105959524774).

2211919049542 is a wasteful number, since it uses less digits than its factorization.

2211919049542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105959524773.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 2211919049542 in words is "two trillion, two hundred eleven billion, nine hundred nineteen million, forty-nine thousand, five hundred forty-two".