1012220121101 has 32 divisors (see below), whose sum is σ = 1219108700160. Its totient is φ = 822184243200.

The previous prime is 1012220121083. The next prime is 1012220121169. The reversal of 1012220121101 is 1011210222101.

It is a cyclic number.

It is not a de Polignac number, because 1012220121101 - 2¹⁰ = 1012220120077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012220121191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3136556 + ... + 3444186.

It is an arithmetic number, because the mean of its divisors is an integer number (38097146880).

Almost surely, 2^{1012220121101} is an apocalyptic number.

It is an amenable number.

1012220121101 is a deficient number, since it is larger than the sum of its proper divisors (206888579059).

1012220121101 is a wasteful number, since it uses less digits than its factorization.

1012220121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307985.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012220121101 its reverse (1011210222101), we get a palindrome (2023430343202).

The spelling of 1012220121101 in words is "one trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".