1020020211145 has 16 divisors (see below), whose sum is σ = 1340522003520. Its totient is φ = 740478815424.

The previous prime is 1020020211131. The next prime is 1020020211191. The reversal of 1020020211145 is 5411120200201.

It is a cyclic number.

It is not a de Polignac number, because 1020020211145 - 2⁷ = 1020020211017 is a prime.

It is a super-2 number, since 2×1020020211145² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132984459 + ... + 132992128.

It is an arithmetic number, because the mean of its divisors is an integer number (83782625220).

Almost surely, 2^{1020020211145} is an apocalyptic number.

It is an amenable number.

1020020211145 is a deficient number, since it is larger than the sum of its proper divisors (320501792375).

1020020211145 is a wasteful number, since it uses less digits than its factorization.

1020020211145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265976664.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 1020020211145 its reverse (5411120200201), we get a palindrome (6431140411346).

The spelling of 1020020211145 in words is "one trillion, twenty billion, twenty million, two hundred eleven thousand, one hundred forty-five".