211012121203 has 16 divisors (see below), whose sum is σ = 227578127616. Its totient is φ = 194494114080.

The previous prime is 211012121183. The next prime is 211012121231. The reversal of 211012121203 is 302121210112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211012121203 is a prime.

It is a super-2 number, since 2×211012121203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211012121263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30266508 + ... + 30273478.

It is an arithmetic number, because the mean of its divisors is an integer number (14223632976).

Almost surely, 2^211012121203 is an apocalyptic number.

211012121203 is a deficient number, since it is larger than the sum of its proper divisors (16566006413).

211012121203 is a wasteful number, since it uses less digits than its factorization.

211012121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211012121203 its reverse (302121210112), we get a palindrome (513133331315).

The spelling of 211012121203 in words is "two hundred eleven billion, twelve million, one hundred twenty-one thousand, two hundred three".