1021111122104 has 8 divisors (see below), whose sum is σ = 1914583353960. Its totient is φ = 510555561048.

The previous prime is 1021111122077. The next prime is 1021111122113. The reversal of 1021111122104 is 4012211111201.

It is a tau number, because it is divible by the number of its divisors (8).

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, 63819445124 + ... + 63819445139.

It is an arithmetic number, because the mean of its divisors is an integer number (239322919245).

Almost surely, 2^{1021111122104} is an apocalyptic number.

It is an amenable number.

1021111122104 is a deficient number, since it is larger than the sum of its proper divisors (893472231856).

1021111122104 is a wasteful number, since it uses less digits than its factorization.

1021111122104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127638890269 (or 127638890265 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1021111122104 its reverse (4012211111201), we get a palindrome (5033322233305).

The spelling of 1021111122104 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred four".