11012011221021 has 8 divisors (see below), whose sum is σ = 14683017660384. Its totient is φ = 7341172797840.

The previous prime is 11012011220971. The next prime is 11012011221047. The reversal of 11012011221021 is 12012211021011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11012011221021 - 2⁶ = 11012011220957 is a prime.

It is a super-2 number, since 2×11012011221021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012011221061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41851035 + ... + 42113336.

It is an arithmetic number, because the mean of its divisors is an integer number (1835377207548).

Almost surely, 2^{11012011221021} is an apocalyptic number.

It is an amenable number.

11012011221021 is a deficient number, since it is larger than the sum of its proper divisors (3671006439363).

11012011221021 is an equidigital number, since it uses as much as digits as its factorization.

11012011221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84008091.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11012011221021 its reverse (12012211021011), we get a palindrome (23024222242032).

The spelling of 11012011221021 in words is "eleven trillion, twelve billion, eleven million, two hundred twenty-one thousand, twenty-one".