2011020312220 has 24 divisors (see below), whose sum is σ = 4223541924000. Its totient is φ = 804332073792.

The previous prime is 2011020312209. The next prime is 2011020312233. The reversal of 2011020312220 is 222130201102.

It is a happy number.

It is a super-2 number, since 2×2011020312220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011020312194 and 2011020312203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4536120 + ... + 4959679.

It is an arithmetic number, because the mean of its divisors is an integer number (175980913500).

Almost surely, 2^{2011020312220} is an apocalyptic number.

2011020312220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011020312220 is an abundant number, since it is smaller than the sum of its proper divisors (2212521611780).

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

2011020312220 is a wasteful number, since it uses less digits than its factorization.

2011020312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506397 (or 9506395 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2011020312220 its reverse (222130201102), we get a palindrome (2233150513322).

The spelling of 2011020312220 in words is "two trillion, eleven billion, twenty million, three hundred twelve thousand, two hundred twenty".