1220020001211 has 8 divisors (see below), whose sum is σ = 1774574547264. Its totient is φ = 739406061320.

The previous prime is 1220020001203. The next prime is 1220020001219. The reversal of 1220020001211 is 1121000200221.

It is an interprime number because it is at equal distance from previous prime (1220020001203) and next prime (1220020001219).

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

It is a cyclic number.

It is not a de Polignac number, because 1220020001211 - 2³ = 1220020001203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220020001219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18485151501 + ... + 18485151566.

It is an arithmetic number, because the mean of its divisors is an integer number (221821818408).

Almost surely, 2^{1220020001211} is an apocalyptic number.

1220020001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1220020001211 is a deficient number, since it is larger than the sum of its proper divisors (554554546053).

1220020001211 is a wasteful number, since it uses less digits than its factorization.

1220020001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36970303081.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220020001211 its reverse (1121000200221), we get a palindrome (2341020201432).

The spelling of 1220020001211 in words is "one trillion, two hundred twenty billion, twenty million, one thousand, two hundred eleven".