1220102121201 has 16 divisors (see below), whose sum is σ = 1632741926400. Its totient is φ = 810436371968.

The previous prime is 1220102121193. The next prime is 1220102121229. The reversal of 1220102121201 is 1021212010221.

It is a cyclic number.

It is not a de Polignac number, because 1220102121201 - 2³ = 1220102121193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220102121001) 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 15 ways as a sum of consecutive naturals, for example, 521440 + ... + 1646846.

It is an arithmetic number, because the mean of its divisors is an integer number (102046370400).

Almost surely, 2^{1220102121201} is an apocalyptic number.

It is an amenable number.

1220102121201 is a deficient number, since it is larger than the sum of its proper divisors (412639805199).

1220102121201 is a wasteful number, since it uses less digits than its factorization.

1220102121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126728.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220102121201 its reverse (1021212010221), we get a palindrome (2241314131422).

The spelling of 1220102121201 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred one".