1020020220211 has 4 divisors (see below), whose sum is σ = 1020475792000. Its totient is φ = 1019564648424.

The previous prime is 1020020220209. The next prime is 1020020220223. The reversal of 1020020220211 is 1120220200201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020020220211 - 2¹ = 1020020220209 is a prime.

It is a super-3 number, since 3×1020020220211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020020220191 and 1020020220200.

It is not an unprimeable number, because it can be changed into a prime (1020020220311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227782536 + ... + 227787013.

It is an arithmetic number, because the mean of its divisors is an integer number (255118948000).

Almost surely, 2^{1020020220211} is an apocalyptic number.

1020020220211 is a deficient number, since it is larger than the sum of its proper divisors (455571789).

1020020220211 is an equidigital number, since it uses as much as digits as its factorization.

1020020220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455571788.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020020220211 its reverse (1120220200201), we get a palindrome (2140240420412).

The spelling of 1020020220211 in words is "one trillion, twenty billion, twenty million, two hundred twenty thousand, two hundred eleven".