11203212222020 has 72 divisors (see below), whose sum is σ = 29115093599424. Its totient is φ = 3545631992448.

The previous prime is 11203212222019. The next prime is 11203212222043. The reversal of 11203212222020 is 2022221230211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11203212221983 and 11203212222001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236730614 + ... + 236777933.

It is an arithmetic number, because the mean of its divisors is an integer number (404376299992).

Almost surely, 2^{11203212222020} is an apocalyptic number.

11203212222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203212222020 is an abundant number, since it is smaller than the sum of its proper divisors (17911881377404).

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

11203212222020 is a wasteful number, since it uses less digits than its factorization.

11203212222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473508589 (or 473508574 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11203212222020 its reverse (2022221230211), we get a palindrome (13225433452231).

The spelling of 11203212222020 in words is "eleven trillion, two hundred three billion, two hundred twelve million, two hundred twenty-two thousand, twenty".