1021222001101 has 12 divisors (see below), whose sum is σ = 1049660787168. Its totient is φ = 993508521272.

The previous prime is 1021222001047. The next prime is 1021222001131. The reversal of 1021222001101 is 1011002221201.

It is not a de Polignac number, because 1021222001101 - 2²³ = 1021213612493 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 (1021222001131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1015231 + ... + 1753036.

It is an arithmetic number, because the mean of its divisors is an integer number (87471732264).

Almost surely, 2^{1021222001101} is an apocalyptic number.

It is an amenable number.

1021222001101 is a deficient number, since it is larger than the sum of its proper divisors (28438786067).

1021222001101 is an equidigital number, since it uses as much as digits as its factorization.

1021222001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768528 (or 2768481 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021222001101 its reverse (1011002221201), we get a palindrome (2032224222302).

The spelling of 1021222001101 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one thousand, one hundred one".