1021011211002 has 64 divisors (see below), whose sum is σ = 2229919632000. Its totient is φ = 310424260608.

The previous prime is 1021011210979. The next prime is 1021011211007. The reversal of 1021011211002 is 2001121101201.

It is not an unprimeable number, because it can be changed into a prime (1021011211007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729574 + ... + 1604462.

It is an arithmetic number, because the mean of its divisors is an integer number (34842494250).

Almost surely, 2^{1021011211002} is an apocalyptic number.

1021011211002 is an abundant number, since it is smaller than the sum of its proper divisors (1208908420998).

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

1021011211002 is a wasteful number, since it uses less digits than its factorization.

1021011211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875295.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021011211002 its reverse (2001121101201), we get a palindrome (3022132312203).

It can be divided in two parts, 10 and 21011211002, that added together give a palindrome (21011211012).

The spelling of 1021011211002 in words is "one trillion, twenty-one billion, eleven million, two hundred eleven thousand, two".