1011211220110 has 64 divisors (see below), whose sum is σ = 2240504727552. Its totient is φ = 319991262336.

The previous prime is 1011211220003. The next prime is 1011211220111. The reversal of 1011211220110 is 110221121101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011211220111) 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, 7598967 + ... + 7730893.

It is an arithmetic number, because the mean of its divisors is an integer number (35007886368).

Almost surely, 2^{1011211220110} is an apocalyptic number.

1011211220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011211220110 is an abundant number, since it is smaller than the sum of its proper divisors (1229293507442).

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

1011211220110 is a wasteful number, since it uses less digits than its factorization.

1011211220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140377.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011211220110 its reverse (110221121101), we get a palindrome (1121432341211).

Subtracting from 1011211220110 its reverse (110221121101), we obtain a palindrome (900990099009).

It can be divided in two parts, 1011211 and 220110, that added together give a palindrome (1231321).

The spelling of 1011211220110 in words is "one trillion, eleven billion, two hundred eleven million, two hundred twenty thousand, one hundred ten".