2012401240220 has 48 divisors (see below), whose sum is σ = 4829996461248. Its totient is φ = 689932784640.

The previous prime is 2012401240219. The next prime is 2012401240237. The reversal of 2012401240220 is 220421042102.

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 = 2012401240192 and 2012401240201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2650964 + ... + 3324516.

It is an arithmetic number, because the mean of its divisors is an integer number (100624926276).

Almost surely, 2^{2012401240220} is an apocalyptic number.

2012401240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012401240220 is an abundant number, since it is smaller than the sum of its proper divisors (2817595221028).

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

2012401240220 is a wasteful number, since it uses less digits than its factorization.

2012401240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694910 (or 694908 counting only the distinct ones).

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

Adding to 2012401240220 its reverse (220421042102), we get a palindrome (2232822282322).

The spelling of 2012401240220 in words is "two trillion, twelve billion, four hundred one million, two hundred forty thousand, two hundred twenty".