1220210212011 has 32 divisors (see below), whose sum is σ = 1867679244288. Its totient is φ = 694153189920.

The previous prime is 1220210211929. The next prime is 1220210212043. The reversal of 1220210212011 is 1102120120221.

It is not a de Polignac number, because 1220210212011 - 2⁹ = 1220210211499 is a prime.

It is a super-2 number, since 2×1220210212011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220210212211) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4082476 + ... + 4371158.

It is an arithmetic number, because the mean of its divisors is an integer number (58364976384).

Almost surely, 2^{1220210212011} is an apocalyptic number.

1220210212011 is a deficient number, since it is larger than the sum of its proper divisors (647469032277).

1220210212011 is a wasteful number, since it uses less digits than its factorization.

1220210212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289591.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220210212011 its reverse (1102120120221), we get a palindrome (2322330332232).

The spelling of 1220210212011 in words is "one trillion, two hundred twenty billion, two hundred ten million, two hundred twelve thousand, eleven".