2101210020212 has 6 divisors (see below), whose sum is σ = 3677117535378. Its totient is φ = 1050605010104.

The previous prime is 2101210020209. The next prime is 2101210020227. The reversal of 2101210020212 is 2120200121012.

It can be written as a sum of positive squares in only one way, i.e., 1742832986896 + 358377033316 = 1320164^2 + 598646^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262651252523 + ... + 262651252530.

It is an arithmetic number, because the mean of its divisors is an integer number (612852922563).

Almost surely, 2^{2101210020212} is an apocalyptic number.

It is an amenable number.

2101210020212 is a deficient number, since it is larger than the sum of its proper divisors (1575907515166).

2101210020212 is a wasteful number, since it uses less digits than its factorization.

2101210020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525302505057 (or 525302505055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101210020212 its reverse (2120200121012), we get a palindrome (4221410141224).

The spelling of 2101210020212 in words is "two trillion, one hundred one billion, two hundred ten million, twenty thousand, two hundred twelve".