121220220210011 has 64 divisors (see below), whose sum is σ = 137002731264000. Its totient is φ = 106418539155456.

The previous prime is 121220220209941. The next prime is 121220220210083. The reversal of 121220220210011 is 110012022022121.

It is a cyclic number.

It is not a de Polignac number, because 121220220210011 - 2³⁸ = 120945342303067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220220210511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71347980440 + ... + 71347982138.

It is an arithmetic number, because the mean of its divisors is an integer number (2140667676000).

Almost surely, 2^{121220220210011} is an apocalyptic number.

121220220210011 is a deficient number, since it is larger than the sum of its proper divisors (15782511053989).

121220220210011 is a wasteful number, since it uses less digits than its factorization.

121220220210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220220210011 its reverse (110012022022121), we get a palindrome (231232242232132).

The spelling of 121220220210011 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred twenty million, two hundred ten thousand, eleven".