201121102002220 has 12 divisors (see below), whose sum is σ = 422354314204704. Its totient is φ = 80448440800880.

The previous prime is 201121102002217. The next prime is 201121102002241. The reversal of 201121102002220 is 22200201121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201121102002194 and 201121102002203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028027550036 + ... + 5028027550075.

It is an arithmetic number, because the mean of its divisors is an integer number (35196192850392).

Almost surely, 2^{201121102002220} is an apocalyptic number.

201121102002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121102002220 is an abundant number, since it is smaller than the sum of its proper divisors (221233212202484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201121102002220 is a wasteful number, since it uses less digits than its factorization.

201121102002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056055100120 (or 10056055100118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201121102002220 its reverse (22200201121102), we get a palindrome (223321303123322).

The spelling of 201121102002220 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred two million, two thousand, two hundred twenty".