1011001211002 has 48 divisors (see below), whose sum is σ = 1561611965760. Its totient is φ = 490887371520.

The previous prime is 1011001210997. The next prime is 1011001211057. The reversal of 1011001211002 is 2001121001101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011001211002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1078976278 + ... + 1078977214.

It is an arithmetic number, because the mean of its divisors is an integer number (32533582620).

Almost surely, 2^{1011001211002} is an apocalyptic number.

1011001211002 is a deficient number, since it is larger than the sum of its proper divisors (550610754758).

1011001211002 is an equidigital number, since it uses as much as digits as its factorization.

1011001211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2167 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1011001211002 its reverse (2001121001101), we get a palindrome (3012122212103).

The spelling of 1011001211002 in words is "one trillion, eleven billion, one million, two hundred eleven thousand, two".