1022121212101 has 16 divisors (see below), whose sum is σ = 1153546785216. Its totient is φ = 897562000000.

The previous prime is 1022121212083. The next prime is 1022121212107. The reversal of 1022121212101 is 1012121212201.

It is a cyclic number.

It is not a de Polignac number, because 1022121212101 - 2⁵ = 1022121212069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121212107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11173975 + ... + 11265076.

It is an arithmetic number, because the mean of its divisors is an integer number (72096674076).

Almost surely, 2^{1022121212101} is an apocalyptic number.

1022121212101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022121212101 is a deficient number, since it is larger than the sum of its proper divisors (131425573115).

1022121212101 is a wasteful number, since it uses less digits than its factorization.

1022121212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439204.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022121212101 its reverse (1012121212201), we get a palindrome (2034242424302).

The spelling of 1022121212101 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, one hundred one".