1122010100021 has 16 divisors (see below), whose sum is σ = 1274910883200. Its totient is φ = 981681357888.

The previous prime is 1122010100009. The next prime is 1122010100039. The reversal of 1122010100021 is 1200010102211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122010100021 is a prime.

It is a super-3 number, since 3×1122010100021³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122010099975 and 1122010100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122010160021) 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, 44255066 + ... + 44280411.

It is an arithmetic number, because the mean of its divisors is an integer number (79681930200).

Almost surely, 2^{1122010100021} is an apocalyptic number.

It is an amenable number.

1122010100021 is a deficient number, since it is larger than the sum of its proper divisors (152900783179).

1122010100021 is a wasteful number, since it uses less digits than its factorization.

1122010100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88535548.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1122010100021 its reverse (1200010102211), we get a palindrome (2322020202232).

The spelling of 1122010100021 in words is "one trillion, one hundred twenty-two billion, ten million, one hundred thousand, twenty-one".