10021211012 has 6 divisors (see below), whose sum is σ = 17537119278. Its totient is φ = 5010605504.

The previous prime is 10021211003. The next prime is 10021211069. The reversal of 10021211012 is 21011212001.

It can be written as a sum of positive squares in only one way, i.e., 8510800516 + 1510410496 = 92254^2 + 38864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021210984 and 10021211002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252651373 + ... + 1252651380.

It is an arithmetic number, because the mean of its divisors is an integer number (2922853213).

Almost surely, 2^10021211012 is an apocalyptic number.

It is an amenable number.

10021211012 is a deficient number, since it is larger than the sum of its proper divisors (7515908266).

10021211012 is a wasteful number, since it uses less digits than its factorization.

10021211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505302757 (or 2505302755 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10021211012 its reverse (21011212001), we get a palindrome (31032423013).

The spelling of 10021211012 in words is "ten billion, twenty-one million, two hundred eleven thousand, twelve".