1220020001101 has 16 divisors (see below), whose sum is σ = 1332690670080. Its totient is φ = 1107643304880.

The previous prime is 1220020001099. The next prime is 1220020001141. The reversal of 1220020001101 is 1011000200221.

It is a cyclic number.

It is not a de Polignac number, because 1220020001101 - 2¹ = 1220020001099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020001141) 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, 41969710 + ... + 41998768.

It is an arithmetic number, because the mean of its divisors is an integer number (83293166880).

Almost surely, 2^{1220020001101} is an apocalyptic number.

1220020001101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220020001101 is a deficient number, since it is larger than the sum of its proper divisors (112670668979).

1220020001101 is a wasteful number, since it uses less digits than its factorization.

1220020001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33984.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1220020001101 its reverse (1011000200221), we get a palindrome (2231020201322).

The spelling of 1220020001101 in words is "one trillion, two hundred twenty billion, twenty million, one thousand, one hundred one".