11212120021010 has 16 divisors (see below), whose sum is σ = 20182544150616. Its totient is φ = 4484686205568.

The previous prime is 11212120021009. The next prime is 11212120021097. The reversal of 11212120021010 is 1012002121211.

It can be written as a sum of positive squares in 4 ways, for example, as 8028682581049 + 3183437439961 = 2833493^2 + 1784219^2 .

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, 19934117 + ... + 20488856.

Almost surely, 2^{11212120021010} is an apocalyptic number.

11212120021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212120021010 is a deficient number, since it is larger than the sum of its proper divisors (8970424129606).

11212120021010 is a wasteful number, since it uses less digits than its factorization.

11212120021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40450717.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11212120021010 its reverse (1012002121211), we get a palindrome (12224122142221).

The spelling of 11212120021010 in words is "eleven trillion, two hundred twelve billion, one hundred twenty million, twenty-one thousand, ten".