22011121120020 has 24 divisors (see below), whose sum is σ = 61631139136224. Its totient is φ = 5869632298656.

The previous prime is 22011121119983. The next prime is 22011121120057. The reversal of 22011121120020 is 2002112111022.

It is an interprime number because it is at equal distance from previous prime (22011121119983) and next prime (22011121120057).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 183426009274 + ... + 183426009393.

It is an arithmetic number, because the mean of its divisors is an integer number (2567964130676).

Almost surely, 2^{22011121120020} is an apocalyptic number.

22011121120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011121120020 is an abundant number, since it is smaller than the sum of its proper divisors (39620018016204).

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

22011121120020 is a wasteful number, since it uses less digits than its factorization.

22011121120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366852018679 (or 366852018677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22011121120020 its reverse (2002112111022), we get a palindrome (24013233231042).

The spelling of 22011121120020 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, one hundred twenty thousand, twenty".