100211021121212 has 48 divisors (see below), whose sum is σ = 179657616319104. Its totient is φ = 48883018968000.

The previous prime is 100211021121193. The next prime is 100211021121229. The reversal of 100211021121212 is 212121120112001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971258387 + ... + 971361557.

It is an arithmetic number, because the mean of its divisors is an integer number (3742867006648).

Almost surely, 2^{100211021121212} is an apocalyptic number.

It is an amenable number.

100211021121212 is a deficient number, since it is larger than the sum of its proper divisors (79446595197892).

100211021121212 is a wasteful number, since it uses less digits than its factorization.

100211021121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109770 (or 109768 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 100211021121212 its reverse (212121120112001), we get a palindrome (312332141233213).

The spelling of 100211021121212 in words is "one hundred trillion, two hundred eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred twelve".