20130222011 has 4 divisors (see below), whose sum is σ = 21189707400. Its totient is φ = 19070736624.

The previous prime is 20130221983. The next prime is 20130222037. The reversal of 20130222011 is 11022203102.

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 20130222011 - 2²² = 20126027707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130222061) 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, 529742666 + ... + 529742703.

It is an arithmetic number, because the mean of its divisors is an integer number (5297426850).

Almost surely, 2^20130222011 is an apocalyptic number.

20130222011 is a deficient number, since it is larger than the sum of its proper divisors (1059485389).

20130222011 is a wasteful number, since it uses less digits than its factorization.

20130222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059485388.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20130222011 its reverse (11022203102), we get a palindrome (31152425113).

It can be divided in two parts, 20 and 130222011, that added together give a palindrome (130222031).

The spelling of 20130222011 in words is "twenty billion, one hundred thirty million, two hundred twenty-two thousand, eleven".