1020100011211 has 4 divisors (see below), whose sum is σ = 1030200011424. Its totient is φ = 1010000011000.

The previous prime is 1020100011209. The next prime is 1020100011233. The reversal of 1020100011211 is 1121100010201.

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 1020100011211 - 2¹ = 1020100011209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020100011251) 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, 5049999955 + ... + 5050000156.

It is an arithmetic number, because the mean of its divisors is an integer number (257550002856).

Almost surely, 2^{1020100011211} is an apocalyptic number.

1020100011211 is a deficient number, since it is larger than the sum of its proper divisors (10100000213).

1020100011211 is a wasteful number, since it uses less digits than its factorization.

1020100011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100000212.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1020100011211 its reverse (1121100010201), we get a palindrome (2141200021412).

The spelling of 1020100011211 in words is "one trillion, twenty billion, one hundred million, eleven thousand, two hundred eleven".