2211142901 has 4 divisors (see below), whose sum is σ = 2412155904. Its totient is φ = 2010129900.

The previous prime is 2211142891. The next prime is 2211142919. The reversal of 2211142901 is 1092411122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2211142901 - 2⁶ = 2211142837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211142931) 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, 100506485 + ... + 100506506.

It is an arithmetic number, because the mean of its divisors is an integer number (603038976).

Almost surely, 2^2211142901 is an apocalyptic number.

It is an amenable number.

2211142901 is a deficient number, since it is larger than the sum of its proper divisors (201013003).

2211142901 is a wasteful number, since it uses less digits than its factorization.

2211142901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201013002.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2211142901 is about 47022.7912931591. The cubic root of 2211142901 is about 1302.7835624015.

The spelling of 2211142901 in words is "two billion, two hundred eleven million, one hundred forty-two thousand, nine hundred one".