201101202122220 has 36 divisors (see below), whose sum is σ = 610006979771280. Its totient is φ = 53626987232544.

The previous prime is 201101202122207. The next prime is 201101202122263. The reversal of 201101202122220 is 22221202101102.

It is a happy number.

201101202122220 is a `hidden beast` number, since 2 + 0 + 110 + 120 + 212 + 2 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201101202122193 and 201101202122202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558614450160 + ... + 558614450519.

It is an arithmetic number, because the mean of its divisors is an integer number (16944638326980).

Almost surely, 2^{201101202122220} is an apocalyptic number.

201101202122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201101202122220 is an abundant number, since it is smaller than the sum of its proper divisors (408905777649060).

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

201101202122220 is a wasteful number, since it uses less digits than its factorization.

201101202122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117228900694 (or 1117228900689 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201101202122220 its reverse (22221202101102), we get a palindrome (223322404223322).

The spelling of 201101202122220 in words is "two hundred one trillion, one hundred one billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty".