1011223311210 has 160 divisors (see below), whose sum is σ = 3108203379072. Its totient is φ = 231084835200.

The previous prime is 1011223311187. The next prime is 1011223311257. The reversal of 1011223311210 is 121133221101.

1011223311210 is a `hidden beast` number, since 1 + 0 + 1 + 122 + 331 + 1 + 210 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28905189 + ... + 28940151.

Almost surely, 2^{1011223311210} is an apocalyptic number.

1011223311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011223311210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554101689536).

1011223311210 is an abundant number, since it is smaller than the sum of its proper divisors (2096980067862).

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

1011223311210 is a wasteful number, since it uses less digits than its factorization.

1011223311210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40090 (or 40081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1011223311210 its reverse (121133221101), we get a palindrome (1132356532311).

The spelling of 1011223311210 in words is "one trillion, eleven billion, two hundred twenty-three million, three hundred eleven thousand, two hundred ten".