2221212001011 has 4 divisors (see below), whose sum is σ = 2961616001352. Its totient is φ = 1480808000672.

The previous prime is 2221212001009. The next prime is 2221212001013. The reversal of 2221212001011 is 1101002121222.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2221212001009) and next prime (2221212001013).

It is a cyclic number.

It is not a de Polignac number, because 2221212001011 - 2¹ = 2221212001009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221212001013) 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 3 ways as a sum of consecutive naturals, for example, 370202000166 + ... + 370202000171.

It is an arithmetic number, because the mean of its divisors is an integer number (740404000338).

Almost surely, 2^{2221212001011} is an apocalyptic number.

2221212001011 is a deficient number, since it is larger than the sum of its proper divisors (740404000341).

2221212001011 is an equidigital number, since it uses as much as digits as its factorization.

2221212001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740404000340.

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

Adding to 2221212001011 its reverse (1101002121222), we get a palindrome (3322214122233).

The spelling of 2221212001011 in words is "two trillion, two hundred twenty-one billion, two hundred twelve million, one thousand, eleven".