1220211210010 has 16 divisors (see below), whose sum is σ = 2365332499656. Its totient is φ = 450539523648.

The previous prime is 1220211209963. The next prime is 1220211210041. The reversal of 1220211210010 is 100121120221.

It can be written as a sum of positive squares in 4 ways, for example, as 769200915681 + 451010294329 = 877041^2 + 671573^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 4693119909 + ... + 4693120168.

Almost surely, 2^{1220211210010} is an apocalyptic number.

1220211210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220211210010 is a deficient number, since it is larger than the sum of its proper divisors (1145121289646).

1220211210010 is a wasteful number, since it uses less digits than its factorization.

1220211210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386240097.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220211210010 its reverse (100121120221), we get a palindrome (1320332330231).

The spelling of 1220211210010 in words is "one trillion, two hundred twenty billion, two hundred eleven million, two hundred ten thousand, ten".