1220221001210 has 8 divisors (see below), whose sum is σ = 2196397802196. Its totient is φ = 488088400480.

The previous prime is 1220221001171. The next prime is 1220221001249. The reversal of 1220221001210 is 121001220221.

It is an interprime number because it is at equal distance from previous prime (1220221001171) and next prime (1220221001249).

It can be written as a sum of positive squares in 2 ways, for example, as 1114922698201 + 105298303009 = 1055899^2 + 324497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61011050051 + ... + 61011050070.

Almost surely, 2^{1220221001210} is an apocalyptic number.

1220221001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220221001210 is a deficient number, since it is larger than the sum of its proper divisors (976176800986).

1220221001210 is a wasteful number, since it uses less digits than its factorization.

1220221001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122022100128.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220221001210 its reverse (121001220221), we get a palindrome (1341222221431).

The spelling of 1220221001210 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, one thousand, two hundred ten".