2211012211020 has 96 divisors (see below), whose sum is σ = 6509300253120. Its totient is φ = 559939752960.

The previous prime is 2211012210949. The next prime is 2211012211021. The reversal of 2211012211020 is 201122101122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2211012211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10309407 + ... + 10521686.

It is an arithmetic number, because the mean of its divisors is an integer number (67805210970).

Almost surely, 2^{2211012211020} is an apocalyptic number.

2211012211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211012211020 is an abundant number, since it is smaller than the sum of its proper divisors (4298288042100).

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

2211012211020 is a wasteful number, since it uses less digits than its factorization.

2211012211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20831195 (or 20831193 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211012211020 its reverse (201122101122), we get a palindrome (2412134312142).

The spelling of 2211012211020 in words is "two trillion, two hundred eleven billion, twelve million, two hundred eleven thousand, twenty".