1111022100121 has 8 divisors (see below), whose sum is σ = 1114212591360. Its totient is φ = 1107835018752.

The previous prime is 1111022100109. The next prime is 1111022100131. The reversal of 1111022100121 is 1210012201111.

It is a happy number.

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 1111022100121 - 2⁹ = 1111022099609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111022100131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199165 + ... + 1503898.

It is an arithmetic number, because the mean of its divisors is an integer number (139276573920).

Almost surely, 2^{1111022100121} is an apocalyptic number.

It is an amenable number.

1111022100121 is a deficient number, since it is larger than the sum of its proper divisors (3190491239).

1111022100121 is a wasteful number, since it uses less digits than its factorization.

1111022100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704935.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111022100121 its reverse (1210012201111), we get a palindrome (2321034301232).

The spelling of 1111022100121 in words is "one trillion, one hundred eleven billion, twenty-two million, one hundred thousand, one hundred twenty-one".