1211230221002 has 16 divisors (see below), whose sum is σ = 1856853234432. Its totient is φ = 592297915440.

The previous prime is 1211230220897. The next prime is 1211230221013. The reversal of 1211230221002 is 2001220321121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4563374 + ... + 4821497.

It is an arithmetic number, because the mean of its divisors is an integer number (116053327152).

Almost surely, 2^{1211230221002} is an apocalyptic number.

1211230221002 is a deficient number, since it is larger than the sum of its proper divisors (645623013430).

1211230221002 is a wasteful number, since it uses less digits than its factorization.

1211230221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386293.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1211230221002 its reverse (2001220321121), we get a palindrome (3212450542123).

The spelling of 1211230221002 in words is "one trillion, two hundred eleven billion, two hundred thirty million, two hundred twenty-one thousand, two".