221020020111022 has 16 divisors (see below), whose sum is σ = 362742325978032. Its totient is φ = 100165533793920.

The previous prime is 221020020111019. The next prime is 221020020111029. The reversal of 221020020111022 is 220111020020122.

It is a happy number.

221020020111022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221020020110987 and 221020020111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020020111029) 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, 14905577973 + ... + 14905592800.

It is an arithmetic number, because the mean of its divisors is an integer number (22671395373627).

Almost surely, 2^{221020020111022} is an apocalyptic number.

221020020111022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020020111022 is a deficient number, since it is larger than the sum of its proper divisors (141722305867010).

221020020111022 is a wasteful number, since it uses less digits than its factorization.

221020020111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29811171123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221020020111022 its reverse (220111020020122), we get a palindrome (441131040131144).

The spelling of 221020020111022 in words is "two hundred twenty-one trillion, twenty billion, twenty million, one hundred eleven thousand, twenty-two".