1020002100212 has 12 divisors (see below), whose sum is σ = 1794349245696. Its totient is φ = 507330887160.

The previous prime is 1020002100203. The next prime is 1020002100233. The reversal of 1020002100212 is 2120012000201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020002100193 and 1020002100202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667539878 + ... + 667541405.

It is an arithmetic number, because the mean of its divisors is an integer number (149529103808).

Almost surely, 2^{1020002100212} is an apocalyptic number.

It is an amenable number.

1020002100212 is a deficient number, since it is larger than the sum of its proper divisors (774347145484).

1020002100212 is a wasteful number, since it uses less digits than its factorization.

1020002100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335081478 (or 1335081476 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020002100212 its reverse (2120012000201), we get a palindrome (3140014100413).

The spelling of 1020002100212 in words is "one trillion, twenty billion, two million, one hundred thousand, two hundred twelve".