1111022201021 has 8 divisors (see below), whose sum is σ = 1119475544544. Its totient is φ = 1102600818000.

The previous prime is 1111022200999. The next prime is 1111022201041. The reversal of 1111022201021 is 1201022201111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111022201021 - 2²² = 1111018006717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111022200987 and 1111022201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111022201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7920335 + ... + 8059388.

It is an arithmetic number, because the mean of its divisors is an integer number (139934443068).

Almost surely, 2^{1111022201021} is an apocalyptic number.

It is an amenable number.

1111022201021 is a deficient number, since it is larger than the sum of its proper divisors (8453343523).

1111022201021 is a wasteful number, since it uses less digits than its factorization.

1111022201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980251.

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

Adding to 1111022201021 its reverse (1201022201111), we get a palindrome (2312044402132).

The spelling of 1111022201021 in words is "one trillion, one hundred eleven billion, twenty-two million, two hundred one thousand, twenty-one".