20022111020 has 12 divisors (see below), whose sum is σ = 42046433184. Its totient is φ = 8008844400.

The previous prime is 20022111017. The next prime is 20022111071. The reversal of 20022111020 is 2011122002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20022110992 and 20022111010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500552756 + ... + 500552795.

It is an arithmetic number, because the mean of its divisors is an integer number (3503869432).

Almost surely, 2^20022111020 is an apocalyptic number.

20022111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022111020 is an abundant number, since it is smaller than the sum of its proper divisors (22024322164).

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

20022111020 is a wasteful number, since it uses less digits than its factorization.

20022111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001105560 (or 1001105558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20022111020 its reverse (2011122002), we get a palindrome (22033233022).

The spelling of 20022111020 in words is "twenty billion, twenty-two million, one hundred eleven thousand, twenty".