201012222220220 has 96 divisors (see below), whose sum is σ = 424521953856000. Its totient is φ = 79949938869504.

The previous prime is 201012222220127. The next prime is 201012222220223. The reversal of 201012222220220 is 22022222210102.

It is a super-2 number, since 2×201012222220220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201012222220192 and 201012222220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012222220223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6211157759 + ... + 6211190121.

It is an arithmetic number, because the mean of its divisors is an integer number (4422103686000).

Almost surely, 2^{201012222220220} is an apocalyptic number.

201012222220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012222220220 is an abundant number, since it is smaller than the sum of its proper divisors (223509731635780).

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

201012222220220 is a wasteful number, since it uses less digits than its factorization.

201012222220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35187 (or 35185 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 201012222220220 its reverse (22022222210102), we get a palindrome (223034444430322).

The spelling of 201012222220220 in words is "two hundred one trillion, twelve billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty".