11011001212020 has 48 divisors (see below), whose sum is σ = 32453477259840. Its totient is φ = 2781726621696.

The previous prime is 11011001212019. The next prime is 11011001212021. The reversal of 11011001212020 is 2021210011011.

It is an interprime number because it is at equal distance from previous prime (11011001212019) and next prime (11011001212021).

It is a super-2 number, since 2×11011001212020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11011001211987 and 11011001212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011001212021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829385357 + ... + 4829387636.

It is an arithmetic number, because the mean of its divisors is an integer number (676114109580).

Almost surely, 2^{11011001212020} is an apocalyptic number.

11011001212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011001212020 is an abundant number, since it is smaller than the sum of its proper divisors (21442476047820).

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

11011001212020 is a wasteful number, since it uses less digits than its factorization.

11011001212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658773024 (or 9658773022 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11011001212020 its reverse (2021210011011), we get a palindrome (13032211223031).

The spelling of 11011001212020 in words is "eleven trillion, eleven billion, one million, two hundred twelve thousand, twenty".