1102022020121 has 48 divisors (see below), whose sum is σ = 1298559321360. Its totient is φ = 931175731200.

The previous prime is 1102022020117. The next prime is 1102022020147. The reversal of 1102022020121 is 1210202202011.

It can be written as a sum of positive squares in 8 ways, for example, as 100021020121 + 1002001000000 = 316261^2 + 1001000^2 .

It is not a de Polignac number, because 1102022020121 - 2² = 1102022020117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102022020096 and 1102022020105.

It is not an unprimeable number, because it can be changed into a prime (1102022020111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172268495 + ... + 172274891.

It is an arithmetic number, because the mean of its divisors is an integer number (27053319195).

Almost surely, 2^{1102022020121} is an apocalyptic number.

1102022020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102022020121 is a deficient number, since it is larger than the sum of its proper divisors (196537301239).

1102022020121 is a wasteful number, since it uses less digits than its factorization.

1102022020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466 (or 7455 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1102022020121 its reverse (1210202202011), we get a palindrome (2312224222132).

The spelling of 1102022020121 in words is "one trillion, one hundred two billion, twenty-two million, twenty thousand, one hundred twenty-one".