1020220102061 has 2 divisors, whose sum is σ = 1020220102062. Its totient is φ = 1020220102060.

The previous prime is 1020220102037. The next prime is 1020220102103. The reversal of 1020220102061 is 1602010220201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899498599561 + 120721502500 = 948419^2 + 347450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020220102061 - 2¹⁰ = 1020220101037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020220102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510110051030 + 510110051031.

It is an arithmetic number, because the mean of its divisors is an integer number (510110051031).

Almost surely, 2^{1020220102061} is an apocalyptic number.

It is an amenable number.

1020220102061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020220102061 is an equidigital number, since it uses as much as digits as its factorization.

1020220102061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1020220102061 its reverse (1602010220201), we get a palindrome (2622230322262).

The spelling of 1020220102061 in words is "one trillion, twenty billion, two hundred twenty million, one hundred two thousand, sixty-one".