1021101122211 has 8 divisors (see below), whose sum is σ = 1366892339904. Its totient is φ = 678021993000.

The previous prime is 1021101122207. The next prime is 1021101122227. The reversal of 1021101122211 is 1122211011201.

It is a happy number.

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

It is not a de Polignac number, because 1021101122211 - 2² = 1021101122207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021101122411) 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, 678021241 + ... + 678022746.

It is an arithmetic number, because the mean of its divisors is an integer number (170861542488).

Almost surely, 2^{1021101122211} is an apocalyptic number.

1021101122211 is a deficient number, since it is larger than the sum of its proper divisors (345791217693).

1021101122211 is a wasteful number, since it uses less digits than its factorization.

1021101122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356044241.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1021101122211 its reverse (1122211011201), we get a palindrome (2143312133412).

The spelling of 1021101122211 in words is "one trillion, twenty-one billion, one hundred one million, one hundred twenty-two thousand, two hundred eleven".