1020012120211 has 16 divisors (see below), whose sum is σ = 1203613931520. Its totient is φ = 845894960640.

The previous prime is 1020012120209. The next prime is 1020012120241. The reversal of 1020012120211 is 1120212100201.

It is a cyclic number.

It is not a de Polignac number, because 1020012120211 - 2¹ = 1020012120209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020012120191 and 1020012120200.

It is not an unprimeable number, because it can be changed into a prime (1020012120241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382740 + ... + 1478686.

It is an arithmetic number, because the mean of its divisors is an integer number (75225870720).

Almost surely, 2^{1020012120211} is an apocalyptic number.

1020012120211 is a deficient number, since it is larger than the sum of its proper divisors (183601811309).

1020012120211 is a wasteful number, since it uses less digits than its factorization.

1020012120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100274.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020012120211 its reverse (1120212100201), we get a palindrome (2140224220412).

The spelling of 1020012120211 in words is "one trillion, twenty billion, twelve million, one hundred twenty thousand, two hundred eleven".