2201210131212 has 288 divisors, whose sum is σ = 6068093391360. Its totient is φ = 689648359680.

The previous prime is 2201210131189. The next prime is 2201210131261. The reversal of 2201210131212 is 2121310121022.

2201210131212 is a `hidden beast` number, since 220 + 121 + 0 + 1 + 312 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1456789537 + ... + 1456791047.

It is an arithmetic number, because the mean of its divisors is an integer number (21069768720).

Almost surely, 2^{2201210131212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201210131212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3034046695680).

2201210131212 is an abundant number, since it is smaller than the sum of its proper divisors (3866883260148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2201210131212 is a wasteful number, since it uses less digits than its factorization.

2201210131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2201210131212 its reverse (2121310121022), we get a palindrome (4322520252234).

The spelling of 2201210131212 in words is "two trillion, two hundred one billion, two hundred ten million, one hundred thirty-one thousand, two hundred twelve".