1020220120101 has 32 divisors (see below), whose sum is σ = 1676308370688. Its totient is φ = 537462766080.

The previous prime is 1020220120081. The next prime is 1020220120103. The reversal of 1020220120101 is 1010210220201.

It is not a de Polignac number, because 1020220120101 - 2¹⁴ = 1020220103717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220120103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2126880 + ... + 2562041.

It is an arithmetic number, because the mean of its divisors is an integer number (52384636584).

Almost surely, 2^{1020220120101} is an apocalyptic number.

It is an amenable number.

1020220120101 is a deficient number, since it is larger than the sum of its proper divisors (656088250587).

1020220120101 is a wasteful number, since it uses less digits than its factorization.

1020220120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689741.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020220120101 its reverse (1010210220201), we get a palindrome (2030430340302).

The spelling of 1020220120101 in words is "one trillion, twenty billion, two hundred twenty million, one hundred twenty thousand, one hundred one".