101021211020087 has 2 divisors, whose sum is σ = 101021211020088. Its totient is φ = 101021211020086.

The previous prime is 101021211020083. The next prime is 101021211020131. The reversal of 101021211020087 is 780020112120101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101021211020087 - 2² = 101021211020083 is a prime.

It is a super-2 number, since 2×101021211020087² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101021211020083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510605510043 + 50510605510044.

It is an arithmetic number, because the mean of its divisors is an integer number (50510605510044).

Almost surely, 2^{101021211020087} is an apocalyptic number.

101021211020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021211020087 is an equidigital number, since it uses as much as digits as its factorization.

101021211020087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 101021211020087 its reverse (780020112120101), we get a palindrome (881041323140188).

The spelling of 101021211020087 in words is "one hundred one trillion, twenty-one billion, two hundred eleven million, twenty thousand, eighty-seven".