2901212901 has 6 divisors (see below), whose sum is σ = 4190640870. Its totient is φ = 1934141928.

The previous prime is 2901212879. The next prime is 2901212917. The reversal of 2901212901 is 1092121092.

It can be written as a sum of positive squares in only one way, i.e., 2865032676 + 36180225 = 53526^2 + 6015^2 .

It is not a de Polignac number, because 2901212901 - 2⁵ = 2901212869 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2901212921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161178486 + ... + 161178503.

It is an arithmetic number, because the mean of its divisors is an integer number (698440145).

Almost surely, 2^2901212901 is an apocalyptic number.

It is an amenable number.

2901212901 is a deficient number, since it is larger than the sum of its proper divisors (1289427969).

2901212901 is a wasteful number, since it uses less digits than its factorization.

2901212901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322356995 (or 322356992 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 2901212901 is about 53862.9083971521. The cubic root of 2901212901 is about 1426.2419296801.

Adding to 2901212901 its reverse (1092121092), we get a palindrome (3993333993).

The spelling of 2901212901 in words is "two billion, nine hundred one million, two hundred twelve thousand, nine hundred one".