2101220211012 has 48 divisors (see below), whose sum is σ = 5326714861440. Its totient is φ = 640807792128.

The previous prime is 2101220210993. The next prime is 2101220211043. The reversal of 2101220211012 is 2101120221012.

It is a junction number, because it is equal to n+sod(n) for n = 2101220210982 and 2101220211000.

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, 59581312 + ... + 59616567.

It is an arithmetic number, because the mean of its divisors is an integer number (110973226280).

Almost surely, 2^{2101220211012} is an apocalyptic number.

It is an amenable number.

2101220211012 is an abundant number, since it is smaller than the sum of its proper divisors (3225494650428).

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

2101220211012 is a wasteful number, since it uses less digits than its factorization.

2101220211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119198012 (or 119198010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2101220211012 its reverse (2101120221012), we get a palindrome (4202340432024).

The spelling of 2101220211012 in words is "two trillion, one hundred one billion, two hundred twenty million, two hundred eleven thousand, twelve".