121022021212103 has 16 divisors (see below), whose sum is σ = 133169024063232. Its totient is φ = 109068819720000.

The previous prime is 121022021212091. The next prime is 121022021212111. The reversal of 121022021212103 is 301212120220121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121022021212103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022021212153) 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, 73380926 + ... + 75012027.

It is an arithmetic number, because the mean of its divisors is an integer number (8323064003952).

Almost surely, 2^{121022021212103} is an apocalyptic number.

121022021212103 is a deficient number, since it is larger than the sum of its proper divisors (12147002851129).

121022021212103 is a wasteful number, since it uses less digits than its factorization.

121022021212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148393606.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121022021212103 its reverse (301212120220121), we get a palindrome (422234141432224).

The spelling of 121022021212103 in words is "one hundred twenty-one trillion, twenty-two billion, twenty-one million, two hundred twelve thousand, one hundred three".