1212220201101 has 32 divisors (see below), whose sum is σ = 2106301171968. Its totient is φ = 601800330240.

The previous prime is 1212220201091. The next prime is 1212220201121. The reversal of 1212220201101 is 1011020222121.

It is not a de Polignac number, because 1212220201101 - 2⁷ = 1212220200973 is a prime.

It is a super-2 number, since 2×1212220201101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212220201121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130594390 + ... + 130603671.

It is an arithmetic number, because the mean of its divisors is an integer number (65821911624).

Almost surely, 2^{1212220201101} is an apocalyptic number.

It is an amenable number.

1212220201101 is a deficient number, since it is larger than the sum of its proper divisors (894080970867).

1212220201101 is a wasteful number, since it uses less digits than its factorization.

1212220201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261198101.

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

Adding to 1212220201101 its reverse (1011020222121), we get a palindrome (2223240423222).

The spelling of 1212220201101 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred one thousand, one hundred one".