1911201012122 has 8 divisors (see below), whose sum is σ = 2880388255872. Its totient is φ = 951071593500.

The previous prime is 1911201012121. The next prime is 1911201012139. The reversal of 1911201012122 is 2212101021191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1911201012121) 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, 2264455754 + ... + 2264456597.

It is an arithmetic number, because the mean of its divisors is an integer number (360048531984).

Almost surely, 2^{1911201012122} is an apocalyptic number.

1911201012122 is a deficient number, since it is larger than the sum of its proper divisors (969187243750).

1911201012122 is a wasteful number, since it uses less digits than its factorization.

1911201012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528912564.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1911201012122 in words is "one trillion, nine hundred eleven billion, two hundred one million, twelve thousand, one hundred twenty-two".