2201541521212 has 12 divisors (see below), whose sum is σ = 4202942904216. Its totient is φ = 1000700691440.

The previous prime is 2201541521171. The next prime is 2201541521297. The reversal of 2201541521212 is 2121251451022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25017517243 + ... + 25017517330.

It is an arithmetic number, because the mean of its divisors is an integer number (350245242018).

Almost surely, 2^{2201541521212} is an apocalyptic number.

2201541521212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2201541521212 is a deficient number, since it is larger than the sum of its proper divisors (2001401383004).

2201541521212 is a wasteful number, since it uses less digits than its factorization.

2201541521212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50035034588 (or 50035034586 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 2201541521212 its reverse (2121251451022), we get a palindrome (4322792972234).

The spelling of 2201541521212 in words is "two trillion, two hundred one billion, five hundred forty-one million, five hundred twenty-one thousand, two hundred twelve".