1121122101021 has 32 divisors (see below), whose sum is σ = 1617019552512. Its totient is φ = 686835294720.

The previous prime is 1121122100983. The next prime is 1121122101023. The reversal of 1121122101021 is 1201012211211.

It is a happy number.

It is not a de Polignac number, because 1121122101021 - 2⁹ = 1121122100509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122101023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87437791 + ... + 87450611.

It is an arithmetic number, because the mean of its divisors is an integer number (50531861016).

Almost surely, 2^{1121122101021} is an apocalyptic number.

It is an amenable number.

1121122101021 is a deficient number, since it is larger than the sum of its proper divisors (495897451491).

1121122101021 is a wasteful number, since it uses less digits than its factorization.

1121122101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22693.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121122101021 its reverse (1201012211211), we get a palindrome (2322134312232).

The spelling of 1121122101021 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred one thousand, twenty-one".