211212001201210 has 16 divisors (see below), whose sum is σ = 380237833847592. Its totient is φ = 84472304550400.

The previous prime is 211212001201139. The next prime is 211212001201213. The reversal of 211212001201210 is 12102100212112.

It can be written as a sum of positive squares in 4 ways, for example, as 193498365716161 + 17713635485049 = 13910369^2 + 4208757^2 .

It is a super-2 number, since 2×211212001201210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211212001201213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1561920271 + ... + 1562055490.

Almost surely, 2^{211212001201210} is an apocalyptic number.

211212001201210 is a deficient number, since it is larger than the sum of its proper divisors (169025832646382).

211212001201210 is a wasteful number, since it uses less digits than its factorization.

211212001201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123982529.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211212001201210 its reverse (12102100212112), we get a palindrome (223314101413322).

The spelling of 211212001201210 in words is "two hundred eleven trillion, two hundred twelve billion, one million, two hundred one thousand, two hundred ten".