1021011200212 has 6 divisors (see below), whose sum is σ = 1786769600378. Its totient is φ = 510505600104.

The previous prime is 1021011200203. The next prime is 1021011200221. The reversal of 1021011200212 is 2120021101201.

It is an interprime number because it is at equal distance from previous prime (1021011200203) and next prime (1021011200221).

It can be written as a sum of positive squares in only one way, i.e., 918538227216 + 102472972996 = 958404^2 + 320114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021011200192 and 1021011200201.

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, 127626400023 + ... + 127626400030.

Almost surely, 2^{1021011200212} is an apocalyptic number.

It is an amenable number.

1021011200212 is a deficient number, since it is larger than the sum of its proper divisors (765758400166).

1021011200212 is a wasteful number, since it uses less digits than its factorization.

1021011200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255252800057 (or 255252800055 counting only the distinct ones).

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

Adding to 1021011200212 its reverse (2120021101201), we get a palindrome (3141032301413).

The spelling of 1021011200212 in words is "one trillion, twenty-one billion, eleven million, two hundred thousand, two hundred twelve".