1022120012005 has 16 divisors (see below), whose sum is σ = 1227244011840. Its totient is φ = 817229502208.

The previous prime is 1022120011999. The next prime is 1022120012057. The reversal of 1022120012005 is 5002100212201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1022120012005 - 2⁵ = 1022120011973 is a prime.

It is a super-2 number, since 2×1022120012005² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022120012005.

It is a congruent number.

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, 99335901 + ... + 99346189.

It is an arithmetic number, because the mean of its divisors is an integer number (76702750740).

Almost surely, 2^{1022120012005} is an apocalyptic number.

It is an amenable number.

1022120012005 is a deficient number, since it is larger than the sum of its proper divisors (205123999835).

1022120012005 is a wasteful number, since it uses less digits than its factorization.

1022120012005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19700.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 1022120012005 its reverse (5002100212201), we get a palindrome (6024220224206).

The spelling of 1022120012005 in words is "one trillion, twenty-two billion, one hundred twenty million, twelve thousand, five".