1212211021030 has 16 divisors (see below), whose sum is σ = 2185659409824. Its totient is φ = 484066725760.

The previous prime is 1212211020973. The next prime is 1212211021061. The reversal of 1212211021030 is 301201122121.

It is a junction number, because it is equal to n+sod(n) for n = 1212211020995 and 1212211021013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102204106 + ... + 102215965.

It is an arithmetic number, because the mean of its divisors is an integer number (136603713114).

Almost surely, 2^{1212211021030} is an apocalyptic number.

1212211021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212211021030 is a deficient number, since it is larger than the sum of its proper divisors (973448388794).

1212211021030 is a wasteful number, since it uses less digits than its factorization.

1212211021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204420671.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1212211021030 its reverse (301201122121), we get a palindrome (1513412143151).

The spelling of 1212211021030 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twenty-one thousand, thirty".