1020220222021 has 128 divisors (see below), whose sum is σ = 1459189186560. Its totient is φ = 686920953600.

The previous prime is 1020220222001. The next prime is 1020220222037. The reversal of 1020220222021 is 1202220220201.

It is not a de Polignac number, because 1020220222021 - 2⁵ = 1020220221989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020220221986 and 1020220222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220222001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 592117666 + ... + 592119388.

It is an arithmetic number, because the mean of its divisors is an integer number (11399915520).

Almost surely, 2^{1020220222021} is an apocalyptic number.

1020220222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020220222021 is a deficient number, since it is larger than the sum of its proper divisors (438968964539).

1020220222021 is a wasteful number, since it uses less digits than its factorization.

1020220222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1020220222021 its reverse (1202220220201), we get a palindrome (2222440442222).

The spelling of 1020220222021 in words is "one trillion, twenty billion, two hundred twenty million, two hundred twenty-two thousand, twenty-one".