211201021012 has 24 divisors (see below), whose sum is σ = 383077850400. Its totient is φ = 101764133856.

The previous prime is 211201020977. The next prime is 211201021021. The reversal of 211201021012 is 210120102112.

It is a super-2 number, since 2×211201021012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211201020983 and 211201021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679962 + ... + 1801297.

It is an arithmetic number, because the mean of its divisors is an integer number (15961577100).

Almost surely, 2^211201021012 is an apocalyptic number.

It is an amenable number.

211201021012 is a deficient number, since it is larger than the sum of its proper divisors (171876829388).

211201021012 is a wasteful number, since it uses less digits than its factorization.

211201021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481815 (or 3481813 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211201021012 its reverse (210120102112), we get a palindrome (421321123124).

The spelling of 211201021012 in words is "two hundred eleven billion, two hundred one million, twenty-one thousand, twelve".