21119077042 has 32 divisors (see below), whose sum is σ = 37198656000. Its totient is φ = 8802613440.

The previous prime is 21119077037. The next prime is 21119077069. The reversal of 21119077042 is 24077091112.

It is a junction number, because it is equal to n+sod(n) for n = 21119076989 and 21119077007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416567 + ... + 1431397.

It is an arithmetic number, because the mean of its divisors is an integer number (1162458000).

Almost surely, 2^21119077042 is an apocalyptic number.

21119077042 is a deficient number, since it is larger than the sum of its proper divisors (16079578958).

21119077042 is a wasteful number, since it uses less digits than its factorization.

21119077042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17626.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 21119077042 in words is "twenty-one billion, one hundred nineteen million, seventy-seven thousand, forty-two".